Bump to v4.11.2.

README.md

@@ -1,4 +1,4 @@
-# lodash v4.8.1
+# lodash v4.11.2
 
 The [Lodash](https://lodash.com/) library exported as [Node.js](https://nodejs.org/) modules.
 
@@ -28,7 +28,7 @@ var chunk = require('lodash/chunk');
 var extend = require('lodash/fp/extend');
 ```
 
-See the [package source](https://github.com/lodash/lodash/tree/4.8.1-npm) for more details.
+See the [package source](https://github.com/lodash/lodash/tree/4.11.2-npm) for more details.
 
 **Note:**<br>
 Don’t assign values to the [special variable](http://nodejs.org/api/repl.html#repl_repl_features) `_` when in the REPL.<br>

_Hash.js

@@ -4,7 +4,7 @@ var nativeCreate = require('./_nativeCreate');
 var objectProto = Object.prototype;
 
 /**
- * Creates an hash object.
+ * Creates a hash object.
  *
  * @private
  * @constructor

_baseCastKey.js

@@ -1,14 +0,0 @@
-var isSymbol = require('./isSymbol');
-
-/**
- * Casts `value` to a string if it's not a string or symbol.
- *
- * @private
- * @param {*} value The value to inspect.
- * @returns {string|symbol} Returns the cast key.
- */
-function baseCastKey(key) {
-  return (typeof key == 'string' || isSymbol(key)) ? key : (key + '');
-}
-
-module.exports = baseCastKey;

_baseDifference.js

@@ -47,6 +47,7 @@ function baseDifference(array, values, iteratee, comparator) {
     var value = array[index],
         computed = iteratee ? iteratee(value) : value;
 
+    value = (comparator || value !== 0) ? value : 0;
     if (isCommon && computed === computed) {
       var valuesIndex = valuesLength;
       while (valuesIndex--) {

_baseExtremum.js

@@ -1,3 +1,5 @@
+var isSymbol = require('./isSymbol');
+
 /**
  * The base implementation of methods like `_.max` and `_.min` which accepts a
  * `comparator` to determine the extremum value.
@@ -17,7 +19,7 @@ function baseExtremum(array, iteratee, comparator) {
         current = iteratee(value);
 
     if (current != null && (computed === undefined
-          ? current === current
+          ? (current === current && !isSymbol(current))
           : comparator(current, computed)
         )) {
       var computed = current,

_baseFlatten.js

@@ -1,7 +1,5 @@
 var arrayPush = require('./_arrayPush'),
-    isArguments = require('./isArguments'),
-    isArray = require('./isArray'),
-    isArrayLikeObject = require('./isArrayLikeObject');
+    isFlattenable = require('./_isFlattenable');
 
 /**
  * The base implementation of `_.flatten` with support for restricting flattening.
@@ -9,23 +7,24 @@ var arrayPush = require('./_arrayPush'),
  * @private
  * @param {Array} array The array to flatten.
  * @param {number} depth The maximum recursion depth.
- * @param {boolean} [isStrict] Restrict flattening to arrays-like objects.
+ * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.
+ * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.
  * @param {Array} [result=[]] The initial result value.
  * @returns {Array} Returns the new flattened array.
  */
-function baseFlatten(array, depth, isStrict, result) {
-  result || (result = []);
-
+function baseFlatten(array, depth, predicate, isStrict, result) {
   var index = -1,
       length = array.length;
 
+  predicate || (predicate = isFlattenable);
+  result || (result = []);
+
   while (++index < length) {
     var value = array[index];
-    if (depth > 0 && isArrayLikeObject(value) &&
-        (isStrict || isArray(value) || isArguments(value))) {
+    if (depth > 0 && predicate(value)) {
       if (depth > 1) {
         // Recursively flatten arrays (susceptible to call stack limits).
-        baseFlatten(value, depth - 1, isStrict, result);
+        baseFlatten(value, depth - 1, predicate, isStrict, result);
       } else {
         arrayPush(result, value);
       }

_baseFor.js

@@ -2,7 +2,7 @@ var createBaseFor = require('./_createBaseFor');
 
 /**
  * The base implementation of `baseForOwn` which iterates over `object`
- * properties returned by `keysFunc` invoking `iteratee` for each property.
+ * properties returned by `keysFunc` and invokes `iteratee` for each property.
  * Iteratee functions may exit iteration early by explicitly returning `false`.
  *
  * @private

_baseGet.js

@@ -1,5 +1,6 @@
-var baseCastPath = require('./_baseCastPath'),
-    isKey = require('./_isKey');
+var castPath = require('./_castPath'),
+    isKey = require('./_isKey'),
+    toKey = require('./_toKey');
 
 /**
  * The base implementation of `_.get` without support for default values.
@@ -10,13 +11,13 @@ var baseCastPath = require('./_baseCastPath'),
  * @returns {*} Returns the resolved value.
  */
 function baseGet(object, path) {
-  path = isKey(path, object) ? [path] : baseCastPath(path);
+  path = isKey(path, object) ? [path] : castPath(path);
 
   var index = 0,
       length = path.length;
 
   while (object != null && index < length) {
-    object = object[path[index++]];
+    object = object[toKey(path[index++])];
   }
   return (index && index == length) ? object : undefined;
 }

_baseGt.js

@@ -0,0 +1,14 @@
+/**
+ * The base implementation of `_.gt` which doesn't coerce arguments to numbers.
+ *
+ * @private
+ * @param {*} value The value to compare.
+ * @param {*} other The other value to compare.
+ * @returns {boolean} Returns `true` if `value` is greater than `other`,
+ *  else `false`.
+ */
+function baseGt(value, other) {
+  return value > other;
+}
+
+module.exports = baseGt;

_baseIntersection.js

@@ -47,6 +47,7 @@ function baseIntersection(arrays, iteratee, comparator) {
     var value = array[index],
         computed = iteratee ? iteratee(value) : value;
 
+    value = (comparator || value !== 0) ? value : 0;
     if (!(seen
           ? cacheHas(seen, computed)
           : includes(result, computed, comparator)

_baseInvoke.js

@@ -1,8 +1,9 @@
 var apply = require('./_apply'),
-    baseCastPath = require('./_baseCastPath'),
+    castPath = require('./_castPath'),
     isKey = require('./_isKey'),
     last = require('./last'),
-    parent = require('./_parent');
+    parent = require('./_parent'),
+    toKey = require('./_toKey');
 
 /**
  * The base implementation of `_.invoke` without support for individual
@@ -16,11 +17,11 @@ var apply = require('./_apply'),
  */
 function baseInvoke(object, path, args) {
   if (!isKey(path, object)) {
-    path = baseCastPath(path);
+    path = castPath(path);
     object = parent(object, path);
     path = last(path);
   }
-  var func = object == null ? object : object[path];
+  var func = object == null ? object : object[toKey(path)];
   return func == null ? undefined : apply(func, object, args);
 }
 

_baseLt.js

@@ -0,0 +1,14 @@
+/**
+ * The base implementation of `_.lt` which doesn't coerce arguments to numbers.
+ *
+ * @private
+ * @param {*} value The value to compare.
+ * @param {*} other The other value to compare.
+ * @returns {boolean} Returns `true` if `value` is less than `other`,
+ *  else `false`.
+ */
+function baseLt(value, other) {
+  return value < other;
+}
+
+module.exports = baseLt;

_baseMatchesProperty.js

@@ -3,7 +3,8 @@ var baseIsEqual = require('./_baseIsEqual'),
     hasIn = require('./hasIn'),
     isKey = require('./_isKey'),
     isStrictComparable = require('./_isStrictComparable'),
-    matchesStrictComparable = require('./_matchesStrictComparable');
+    matchesStrictComparable = require('./_matchesStrictComparable'),
+    toKey = require('./_toKey');
 
 /** Used to compose bitmasks for comparison styles. */
 var UNORDERED_COMPARE_FLAG = 1,
@@ -19,7 +20,7 @@ var UNORDERED_COMPARE_FLAG = 1,
  */
 function baseMatchesProperty(path, srcValue) {
   if (isKey(path) && isStrictComparable(srcValue)) {
-    return matchesStrictComparable(path, srcValue);
+    return matchesStrictComparable(toKey(path), srcValue);
   }
   return function(object) {
     var objValue = get(object, path);

_baseNth.js

@@ -0,0 +1,20 @@
+var isIndex = require('./_isIndex');
+
+/**
+ * The base implementation of `_.nth` which doesn't coerce `n` to an integer.
+ *
+ * @private
+ * @param {Array} array The array to query.
+ * @param {number} n The index of the element to return.
+ * @returns {*} Returns the nth element of `array`.
+ */
+function baseNth(array, n) {
+  var length = array.length;
+  if (!length) {
+    return;
+  }
+  n += n < 0 ? length : 0;
+  return isIndex(n, length) ? array[n] : undefined;
+}
+
+module.exports = baseNth;

_baseOrderBy.js

@@ -2,6 +2,7 @@ var arrayMap = require('./_arrayMap'),
     baseIteratee = require('./_baseIteratee'),
     baseMap = require('./_baseMap'),
     baseSortBy = require('./_baseSortBy'),
+    baseUnary = require('./_baseUnary'),
     compareMultiple = require('./_compareMultiple'),
     identity = require('./identity');
 
@@ -16,7 +17,7 @@ var arrayMap = require('./_arrayMap'),
  */
 function baseOrderBy(collection, iteratees, orders) {
   var index = -1;
-  iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseIteratee);
+  iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(baseIteratee));
 
   var result = baseMap(collection, function(value, key, collection) {
     var criteria = arrayMap(iteratees, function(iteratee) {

_basePullAt.js

@@ -1,8 +1,9 @@
-var baseCastPath = require('./_baseCastPath'),
+var castPath = require('./_castPath'),
     isIndex = require('./_isIndex'),
     isKey = require('./_isKey'),
     last = require('./last'),
-    parent = require('./_parent');
+    parent = require('./_parent'),
+    toKey = require('./_toKey');
 
 /** Used for built-in method references. */
 var arrayProto = Array.prototype;
@@ -25,21 +26,21 @@ function basePullAt(array, indexes) {
 
   while (length--) {
     var index = indexes[length];
-    if (lastIndex == length || index != previous) {
+    if (length == lastIndex || index !== previous) {
       var previous = index;
       if (isIndex(index)) {
         splice.call(array, index, 1);
       }
       else if (!isKey(index, array)) {
-        var path = baseCastPath(index),
+        var path = castPath(index),
             object = parent(array, path);
 
         if (object != null) {
-          delete object[last(path)];
+          delete object[toKey(last(path))];
         }
       }
       else {
-        delete array[index];
+        delete array[toKey(index)];
       }
     }
   }

_baseSet.js

@@ -1,8 +1,9 @@
 var assignValue = require('./_assignValue'),
-    baseCastPath = require('./_baseCastPath'),
+    castPath = require('./_castPath'),
     isIndex = require('./_isIndex'),
     isKey = require('./_isKey'),
-    isObject = require('./isObject');
+    isObject = require('./isObject'),
+    toKey = require('./_toKey');
 
 /**
  * The base implementation of `_.set`.
@@ -15,7 +16,7 @@ var assignValue = require('./_assignValue'),
  * @returns {Object} Returns `object`.
  */
 function baseSet(object, path, value, customizer) {
-  path = isKey(path, object) ? [path] : baseCastPath(path);
+  path = isKey(path, object) ? [path] : castPath(path);
 
   var index = -1,
       length = path.length,
@@ -23,7 +24,7 @@ function baseSet(object, path, value, customizer) {
       nested = object;
 
   while (nested != null && ++index < length) {
-    var key = path[index];
+    var key = toKey(path[index]);
     if (isObject(nested)) {
       var newValue = value;
       if (index != lastIndex) {

_baseSortedIndex.js

@@ -1,5 +1,6 @@
 var baseSortedIndexBy = require('./_baseSortedIndexBy'),
-    identity = require('./identity');
+    identity = require('./identity'),
+    isSymbol = require('./isSymbol');
 
 /** Used as references for the maximum length and index of an array. */
 var MAX_ARRAY_LENGTH = 4294967295,
@@ -26,7 +27,8 @@ function baseSortedIndex(array, value, retHighest) {
       var mid = (low + high) >>> 1,
           computed = array[mid];
 
-      if ((retHighest ? (computed <= value) : (computed < value)) && computed !== null) {
+      if (computed !== null && !isSymbol(computed) &&
+          (retHighest ? (computed <= value) : (computed < value))) {
         low = mid + 1;
       } else {
         high = mid;

_baseSortedIndexBy.js

@@ -1,3 +1,5 @@
+var isSymbol = require('./isSymbol');
+
 /** Used as references for the maximum length and index of an array. */
 var MAX_ARRAY_LENGTH = 4294967295,
     MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1;
@@ -26,21 +28,26 @@ function baseSortedIndexBy(array, value, iteratee, retHighest) {
       high = array ? array.length : 0,
       valIsNaN = value !== value,
       valIsNull = value === null,
-      valIsUndef = value === undefined;
+      valIsSymbol = isSymbol(value),
+      valIsUndefined = value === undefined;
 
   while (low < high) {
     var mid = nativeFloor((low + high) / 2),
         computed = iteratee(array[mid]),
-        isDef = computed !== undefined,
-        isReflexive = computed === computed;
+        othIsDefined = computed !== undefined,
+        othIsNull = computed === null,
+        othIsReflexive = computed === computed,
+        othIsSymbol = isSymbol(computed);
 
     if (valIsNaN) {
-      var setLow = isReflexive || retHighest;
+      var setLow = retHighest || othIsReflexive;
+    } else if (valIsUndefined) {
+      setLow = othIsReflexive && (retHighest || othIsDefined);
     } else if (valIsNull) {
-      setLow = isReflexive && isDef && (retHighest || computed != null);
-    } else if (valIsUndef) {
-      setLow = isReflexive && (retHighest || isDef);
-    } else if (computed == null) {
+      setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull);
+    } else if (valIsSymbol) {
+      setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol);
+    } else if (othIsNull || othIsSymbol) {
       setLow = false;
     } else {
       setLow = retHighest ? (computed <= value) : (computed < value);

_baseSortedUniq.js

@@ -1,14 +1,30 @@
-var baseSortedUniqBy = require('./_baseSortedUniqBy');
+var eq = require('./eq');
 
 /**
- * The base implementation of `_.sortedUniq`.
+ * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without
+ * support for iteratee shorthands.
  *
  * @private
  * @param {Array} array The array to inspect.
+ * @param {Function} [iteratee] The iteratee invoked per element.
  * @returns {Array} Returns the new duplicate free array.
  */
-function baseSortedUniq(array) {
-  return baseSortedUniqBy(array);
+function baseSortedUniq(array, iteratee) {
+  var index = -1,
+      length = array.length,
+      resIndex = 0,
+      result = [];
+
+  while (++index < length) {
+    var value = array[index],
+        computed = iteratee ? iteratee(value) : value;
+
+    if (!index || !eq(computed, seen)) {
+      var seen = computed;
+      result[resIndex++] = value === 0 ? 0 : value;
+    }
+  }
+  return result;
 }
 
 module.exports = baseSortedUniq;

_baseSortedUniqBy.js

@@ -1,33 +0,0 @@
-var eq = require('./eq');
-
-/**
- * The base implementation of `_.sortedUniqBy` without support for iteratee
- * shorthands.
- *
- * @private
- * @param {Array} array The array to inspect.
- * @param {Function} [iteratee] The iteratee invoked per element.
- * @returns {Array} Returns the new duplicate free array.
- */
-function baseSortedUniqBy(array, iteratee) {
-  var index = 0,
-      length = array.length,
-      value = array[0],
-      computed = iteratee ? iteratee(value) : value,
-      seen = computed,
-      resIndex = 1,
-      result = [value];
-
-  while (++index < length) {
-    value = array[index],
-    computed = iteratee ? iteratee(value) : value;
-
-    if (!eq(computed, seen)) {
-      seen = computed;
-      result[resIndex++] = value;
-    }
-  }
-  return result;
-}
-
-module.exports = baseSortedUniqBy;

_baseToNumber.js

@@ -0,0 +1,24 @@
+var isSymbol = require('./isSymbol');
+
+/** Used as references for various `Number` constants. */
+var NAN = 0 / 0;
+
+/**
+ * The base implementation of `_.toNumber` which doesn't ensure correct
+ * conversions of binary, hexadecimal, or octal string values.
+ *
+ * @private
+ * @param {*} value The value to process.
+ * @returns {number} Returns the number.
+ */
+function baseToNumber(value) {
+  if (typeof value == 'number') {
+    return value;
+  }
+  if (isSymbol(value)) {
+    return NAN;
+  }
+  return +value;
+}
+
+module.exports = baseToNumber;

_baseToString.js

@@ -0,0 +1,31 @@
+var Symbol = require('./_Symbol'),
+    isSymbol = require('./isSymbol');
+
+/** Used as references for various `Number` constants. */
+var INFINITY = 1 / 0;
+
+/** Used to convert symbols to primitives and strings. */
+var symbolProto = Symbol ? Symbol.prototype : undefined,
+    symbolToString = symbolProto ? symbolProto.toString : undefined;
+
+/**
+ * The base implementation of `_.toString` which doesn't convert nullish
+ * values to empty strings.
+ *
+ * @private
+ * @param {*} value The value to process.
+ * @returns {string} Returns the string.
+ */
+function baseToString(value) {
+  // Exit early for strings to avoid a performance hit in some environments.
+  if (typeof value == 'string') {
+    return value;
+  }
+  if (isSymbol(value)) {
+    return symbolToString ? symbolToString.call(value) : '';
+  }
+  var result = (value + '');
+  return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
+}
+
+module.exports = baseToString;

_baseUniq.js

@@ -46,6 +46,7 @@ function baseUniq(array, iteratee, comparator) {
     var value = array[index],
         computed = iteratee ? iteratee(value) : value;
 
+    value = (comparator || value !== 0) ? value : 0;
     if (isCommon && computed === computed) {
       var seenIndex = seen.length;
       while (seenIndex--) {

_baseUnset.js

@@ -1,8 +1,9 @@
-var baseCastPath = require('./_baseCastPath'),
-    has = require('./has'),
+var baseHas = require('./_baseHas'),
+    castPath = require('./_castPath'),
     isKey = require('./_isKey'),
     last = require('./last'),
-    parent = require('./_parent');
+    parent = require('./_parent'),
+    toKey = require('./_toKey');
 
 /**
  * The base implementation of `_.unset`.
@@ -13,10 +14,11 @@ var baseCastPath = require('./_baseCastPath'),
  * @returns {boolean} Returns `true` if the property is deleted, else `false`.
  */
 function baseUnset(object, path) {
-  path = isKey(path, object) ? [path] : baseCastPath(path);
+  path = isKey(path, object) ? [path] : castPath(path);
   object = parent(object, path);
-  var key = last(path);
-  return (object != null && has(object, key)) ? delete object[key] : true;
+
+  var key = toKey(last(path));
+  return !(object != null && baseHas(object, key)) || delete object[key];
 }
 
 module.exports = baseUnset;

_castArrayLikeObject.js

@@ -7,8 +7,8 @@ var isArrayLikeObject = require('./isArrayLikeObject');
  * @param {*} value The value to inspect.
  * @returns {Array|Object} Returns the cast array-like object.
  */
-function baseCastArrayLikeObject(value) {
+function castArrayLikeObject(value) {
   return isArrayLikeObject(value) ? value : [];
 }
 
-module.exports = baseCastArrayLikeObject;
+module.exports = castArrayLikeObject;

_castFunction.js

@@ -7,8 +7,8 @@ var identity = require('./identity');
  * @param {*} value The value to inspect.
  * @returns {Function} Returns cast function.
  */
-function baseCastFunction(value) {
+function castFunction(value) {
   return typeof value == 'function' ? value : identity;
 }
 
-module.exports = baseCastFunction;
+module.exports = castFunction;

_castPath.js

@@ -8,8 +8,8 @@ var isArray = require('./isArray'),
  * @param {*} value The value to inspect.
  * @returns {Array} Returns the cast property path array.
  */
-function baseCastPath(value) {
+function castPath(value) {
   return isArray(value) ? value : stringToPath(value);
 }
 
-module.exports = baseCastPath;
+module.exports = castPath;

_castSlice.js

@@ -0,0 +1,18 @@
+var baseSlice = require('./_baseSlice');
+
+/**
+ * Casts `array` to a slice if it's needed.
+ *
+ * @private
+ * @param {Array} array The array to inspect.
+ * @param {number} start The start position.
+ * @param {number} [end=array.length] The end position.
+ * @returns {Array} Returns the cast slice.
+ */
+function castSlice(array, start, end) {
+  var length = array.length;
+  end = end === undefined ? length : end;
+  return (!start && end >= length) ? array : baseSlice(array, start, end);
+}
+
+module.exports = castSlice;

_compareAscending.js

@@ -1,3 +1,5 @@
+var isSymbol = require('./isSymbol');
+
 /**
  * Compares values to sort them in ascending order.
  *
@@ -8,22 +10,28 @@
  */
 function compareAscending(value, other) {
   if (value !== other) {
-    var valIsNull = value === null,
-        valIsUndef = value === undefined,
-        valIsReflexive = value === value;
+    var valIsDefined = value !== undefined,
+        valIsNull = value === null,
+        valIsReflexive = value === value,
+        valIsSymbol = isSymbol(value);
 
-    var othIsNull = other === null,
-        othIsUndef = other === undefined,
-        othIsReflexive = other === other;
+    var othIsDefined = other !== undefined,
+        othIsNull = other === null,
+        othIsReflexive = other === other,
+        othIsSymbol = isSymbol(other);
 
-    if ((value > other && !othIsNull) || !valIsReflexive ||
-        (valIsNull && !othIsUndef && othIsReflexive) ||
-        (valIsUndef && othIsReflexive)) {
+    if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||
+        (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||
+        (valIsNull && othIsDefined && othIsReflexive) ||
+        (!valIsDefined && othIsReflexive) ||
+        !valIsReflexive) {
       return 1;
     }
-    if ((value < other && !valIsNull) || !othIsReflexive ||
-        (othIsNull && !valIsUndef && valIsReflexive) ||
-        (othIsUndef && valIsReflexive)) {
+    if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||
+        (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||
+        (othIsNull && valIsDefined && valIsReflexive) ||
+        (!othIsDefined && valIsReflexive) ||
+        !othIsReflexive) {
       return -1;
     }
   }

_copyObject.js

@@ -1,4 +1,4 @@
-var copyObjectWith = require('./_copyObjectWith');
+var assignValue = require('./_assignValue');
 
 /**
  * Copies properties of `source` to `object`.
@@ -7,10 +7,25 @@ var copyObjectWith = require('./_copyObjectWith');
  * @param {Object} source The object to copy properties from.
  * @param {Array} props The property identifiers to copy.
  * @param {Object} [object={}] The object to copy properties to.
+ * @param {Function} [customizer] The function to customize copied values.
  * @returns {Object} Returns `object`.
  */
-function copyObject(source, props, object) {
-  return copyObjectWith(source, props, object);
+function copyObject(source, props, object, customizer) {
+  object || (object = {});
+
+  var index = -1,
+      length = props.length;
+
+  while (++index < length) {
+    var key = props[index];
+
+    var newValue = customizer
+      ? customizer(object[key], source[key], key, object, source)
+      : source[key];
+
+    assignValue(object, key, newValue);
+  }
+  return object;
 }
 
 module.exports = copyObject;

_copyObjectWith.js

@@ -1,32 +0,0 @@
-var assignValue = require('./_assignValue');
-
-/**
- * This function is like `copyObject` except that it accepts a function to
- * customize copied values.
- *
- * @private
- * @param {Object} source The object to copy properties from.
- * @param {Array} props The property identifiers to copy.
- * @param {Object} [object={}] The object to copy properties to.
- * @param {Function} [customizer] The function to customize copied values.
- * @returns {Object} Returns `object`.
- */
-function copyObjectWith(source, props, object, customizer) {
-  object || (object = {});
-
-  var index = -1,
-      length = props.length;
-
-  while (++index < length) {
-    var key = props[index];
-
-    var newValue = customizer
-      ? customizer(object[key], source[key], key, object, source)
-      : source[key];
-
-    assignValue(object, key, newValue);
-  }
-  return object;
-}
-
-module.exports = copyObjectWith;

_createCaseFirst.js

@@ -1,18 +1,8 @@
-var stringToArray = require('./_stringToArray'),
+var castSlice = require('./_castSlice'),
+    reHasComplexSymbol = require('./_reHasComplexSymbol'),
+    stringToArray = require('./_stringToArray'),
     toString = require('./toString');
 
-/** Used to compose unicode character classes. */
-var rsAstralRange = '\\ud800-\\udfff',
-    rsComboMarksRange = '\\u0300-\\u036f\\ufe20-\\ufe23',
-    rsComboSymbolsRange = '\\u20d0-\\u20f0',
-    rsVarRange = '\\ufe0e\\ufe0f';
-
-/** Used to compose unicode capture groups. */
-var rsZWJ = '\\u200d';
-
-/** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
-var reHasComplexSymbol = RegExp('[' + rsZWJ + rsAstralRange  + rsComboMarksRange + rsComboSymbolsRange + rsVarRange + ']');
-
 /**
  * Creates a function like `_.lowerFirst`.
  *
@@ -28,8 +18,13 @@ function createCaseFirst(methodName) {
       ? stringToArray(string)
       : undefined;
 
-    var chr = strSymbols ? strSymbols[0] : string.charAt(0),
-        trailing = strSymbols ? strSymbols.slice(1).join('') : string.slice(1);
+    var chr = strSymbols
+      ? strSymbols[0]
+      : string.charAt(0);
+
+    var trailing = strSymbols
+      ? castSlice(strSymbols, 1).join('')
+      : string.slice(1);
 
     return chr[methodName]() + trailing;
   };

_createCompounder.js

@@ -2,6 +2,12 @@ var arrayReduce = require('./_arrayReduce'),
     deburr = require('./deburr'),
     words = require('./words');
 
+/** Used to compose unicode capture groups. */
+var rsApos = "['\u2019]";
+
+/** Used to match apostrophes. */
+var reApos = RegExp(rsApos, 'g');
+
 /**
  * Creates a function like `_.camelCase`.
  *
@@ -11,7 +17,7 @@ var arrayReduce = require('./_arrayReduce'),
  */
 function createCompounder(callback) {
   return function(string) {
-    return arrayReduce(words(deburr(string)), callback, '');
+    return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');
   };
 }
 

_createMathOperation.js

@@ -1,3 +1,6 @@
+var baseToNumber = require('./_baseToNumber'),
+    baseToString = require('./_baseToString');
+
 /**
  * Creates a function that performs a mathematical operation on two values.
  *
@@ -15,7 +18,17 @@ function createMathOperation(operator) {
       result = value;
     }
     if (other !== undefined) {
-      result = result === undefined ? other : operator(result, other);
+      if (result === undefined) {
+        return other;
+      }
+      if (typeof value == 'string' || typeof other == 'string') {
+        value = baseToString(value);
+        other = baseToString(other);
+      } else {
+        value = baseToNumber(value);
+        other = baseToNumber(other);
+      }
+      result = operator(value, other);
     }
     return result;
   };

_createOver.js

@@ -1,6 +1,10 @@
 var apply = require('./_apply'),
     arrayMap = require('./_arrayMap'),
+    baseFlatten = require('./_baseFlatten'),
     baseIteratee = require('./_baseIteratee'),
+    baseUnary = require('./_baseUnary'),
+    isArray = require('./isArray'),
+    isFlattenableIteratee = require('./_isFlattenableIteratee'),
     rest = require('./rest');
 
 /**
@@ -12,7 +16,10 @@ var apply = require('./_apply'),
  */
 function createOver(arrayFunc) {
   return rest(function(iteratees) {
-    iteratees = arrayMap(iteratees, baseIteratee);
+    iteratees = (iteratees.length == 1 && isArray(iteratees[0]))
+      ? arrayMap(iteratees[0], baseUnary(baseIteratee))
+      : arrayMap(baseFlatten(iteratees, 1, isFlattenableIteratee), baseUnary(baseIteratee));
+
     return rest(function(args) {
       var thisArg = this;
       return arrayFunc(iteratees, function(iteratee) {

_createPadding.js

@@ -1,19 +1,10 @@
 var baseRepeat = require('./_baseRepeat'),
+    baseToString = require('./_baseToString'),
+    castSlice = require('./_castSlice'),
+    reHasComplexSymbol = require('./_reHasComplexSymbol'),
     stringSize = require('./_stringSize'),
     stringToArray = require('./_stringToArray');
 
-/** Used to compose unicode character classes. */
-var rsAstralRange = '\\ud800-\\udfff',
-    rsComboMarksRange = '\\u0300-\\u036f\\ufe20-\\ufe23',
-    rsComboSymbolsRange = '\\u20d0-\\u20f0',
-    rsVarRange = '\\ufe0e\\ufe0f';
-
-/** Used to compose unicode capture groups. */
-var rsZWJ = '\\u200d';
-
-/** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
-var reHasComplexSymbol = RegExp('[' + rsZWJ + rsAstralRange  + rsComboMarksRange + rsComboSymbolsRange + rsVarRange + ']');
-
 /* Built-in method references for those with the same name as other `lodash` methods. */
 var nativeCeil = Math.ceil;
 
@@ -27,7 +18,7 @@ var nativeCeil = Math.ceil;
  * @returns {string} Returns the padding for `string`.
  */
 function createPadding(length, chars) {
-  chars = chars === undefined ? ' ' : (chars + '');
+  chars = chars === undefined ? ' ' : baseToString(chars);
 
   var charsLength = chars.length;
   if (charsLength < 2) {
@@ -35,7 +26,7 @@ function createPadding(length, chars) {
   }
   var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));
   return reHasComplexSymbol.test(chars)
-    ? stringToArray(result).slice(0, length).join('')
+    ? castSlice(stringToArray(result), 0, length).join('')
     : result.slice(0, length);
 }
 

_createRecurryWrapper.js

@@ -1,5 +1,4 @@
-var copyArray = require('./_copyArray'),
-    isLaziable = require('./_isLaziable'),
+var isLaziable = require('./_isLaziable'),
     setData = require('./_setData');
 
 /** Used to compose bitmasks for wrapper metadata. */
@@ -30,7 +29,6 @@ var BIND_FLAG = 1,
  */
 function createRecurryWrapper(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {
   var isCurry = bitmask & CURRY_FLAG,
-      newArgPos = argPos ? copyArray(argPos) : undefined,
       newHolders = isCurry ? holders : undefined,
       newHoldersRight = isCurry ? undefined : holders,
       newPartials = isCurry ? partials : undefined,
@@ -44,7 +42,7 @@ function createRecurryWrapper(func, bitmask, wrapFunc, placeholder, thisArg, par
   }
   var newData = [
     func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,
-    newHoldersRight, newArgPos, ary, arity
+    newHoldersRight, argPos, ary, arity
   ];
 
   var result = wrapFunc.apply(undefined, newData);

_createRelationalOperation.js

@@ -0,0 +1,20 @@
+var toNumber = require('./toNumber');
+
+/**
+ * Creates a function that performs a relational operation on two values.
+ *
+ * @private
+ * @param {Function} operator The function to perform the operation.
+ * @returns {Function} Returns the new relational operation function.
+ */
+function createRelationalOperation(operator) {
+  return function(value, other) {
+    if (!(typeof value == 'string' && typeof other == 'string')) {
+      value = toNumber(value);
+      other = toNumber(other);
+    }
+    return operator(value, other);
+  };
+}
+
+module.exports = createRelationalOperation;

_createSet.js

@@ -1,5 +1,9 @@
 var Set = require('./_Set'),
-    noop = require('./noop');
+    noop = require('./noop'),
+    setToArray = require('./_setToArray');
+
+/** Used as references for various `Number` constants. */
+var INFINITY = 1 / 0;
 
 /**
  * Creates a set of `values`.
@@ -8,7 +12,7 @@ var Set = require('./_Set'),
  * @param {Array} values The values to add to the set.
  * @returns {Object} Returns the new set.
  */
-var createSet = !(Set && new Set([1, 2]).size === 2) ? noop : function(values) {
+var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) {
   return new Set(values);
 };
 

_getTag.js

@@ -51,8 +51,8 @@ if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
     (WeakMap && getTag(new WeakMap) != weakMapTag)) {
   getTag = function(value) {
     var result = objectToString.call(value),
-        Ctor = result == objectTag ? value.constructor : null,
-        ctorString = toSource(Ctor);
+        Ctor = result == objectTag ? value.constructor : undefined,
+        ctorString = Ctor ? toSource(Ctor) : undefined;
 
     if (ctorString) {
       switch (ctorString) {

_hasPath.js

@@ -1,10 +1,11 @@
-var baseCastPath = require('./_baseCastPath'),
+var castPath = require('./_castPath'),
     isArguments = require('./isArguments'),
     isArray = require('./isArray'),
     isIndex = require('./_isIndex'),
     isKey = require('./_isKey'),
     isLength = require('./isLength'),
-    isString = require('./isString');
+    isString = require('./isString'),
+    toKey = require('./_toKey');
 
 /**
  * Checks if `path` exists on `object`.
@@ -16,14 +17,14 @@ var baseCastPath = require('./_baseCastPath'),
  * @returns {boolean} Returns `true` if `path` exists, else `false`.
  */
 function hasPath(object, path, hasFunc) {
-  path = isKey(path, object) ? [path] : baseCastPath(path);
+  path = isKey(path, object) ? [path] : castPath(path);
 
   var result,
       index = -1,
       length = path.length;
 
   while (++index < length) {
-    var key = path[index];
+    var key = toKey(path[index]);
     if (!(result = object != null && hasFunc(object, key))) {
       break;
     }

_isFlattenable.js

@@ -0,0 +1,16 @@
+var isArguments = require('./isArguments'),
+    isArray = require('./isArray'),
+    isArrayLikeObject = require('./isArrayLikeObject');
+
+/**
+ * Checks if `value` is a flattenable `arguments` object or array.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.
+ */
+function isFlattenable(value) {
+  return isArrayLikeObject(value) && (isArray(value) || isArguments(value));
+}
+
+module.exports = isFlattenable;

_isFlattenableIteratee.js

@@ -0,0 +1,16 @@
+var isArray = require('./isArray'),
+    isFunction = require('./isFunction');
+
+/**
+ * Checks if `value` is a flattenable array and not a `_.matchesProperty`
+ * iteratee shorthand.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.
+ */
+function isFlattenableIteratee(value) {
+  return isArray(value) && !(value.length == 2 && !isFunction(value[0]));
+}
+
+module.exports = isFlattenableIteratee;

_isIndex.js

@@ -13,9 +13,10 @@ var reIsUint = /^(?:0|[1-9]\d*)$/;
  * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
  */
 function isIndex(value, length) {
-  value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1;
   length = length == null ? MAX_SAFE_INTEGER : length;
-  return value > -1 && value % 1 == 0 && value < length;
+  return !!length &&
+    (typeof value == 'number' || reIsUint.test(value)) &&
+    (value > -1 && value % 1 == 0 && value < length);
 }
 
 module.exports = isIndex;

_isKey.js

@@ -14,13 +14,16 @@ var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
  * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
  */
 function isKey(value, object) {
+  if (isArray(value)) {
+    return false;
+  }
   var type = typeof value;
-  if (type == 'number' || type == 'symbol') {
+  if (type == 'number' || type == 'symbol' || type == 'boolean' ||
+      value == null || isSymbol(value)) {
     return true;
   }
-  return !isArray(value) &&
-    (isSymbol(value) || reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||
-      (object != null && value in Object(object)));
+  return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||
+    (object != null && value in Object(object));
 }
 
 module.exports = isKey;

_isKeyable.js

@@ -7,8 +7,9 @@
  */
 function isKeyable(value) {
   var type = typeof value;
-  return type == 'number' || type == 'boolean' ||
-    (type == 'string' && value != '__proto__') || value == null;
+  return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')
+    ? (value !== '__proto__')
+    : (value === null);
 }
 
 module.exports = isKeyable;

_mergeData.js

@@ -1,6 +1,5 @@
 var composeArgs = require('./_composeArgs'),
     composeArgsRight = require('./_composeArgsRight'),
-    copyArray = require('./_copyArray'),
     replaceHolders = require('./_replaceHolders');
 
 /** Used as the internal argument placeholder. */
@@ -58,20 +57,20 @@ function mergeData(data, source) {
   var value = source[3];
   if (value) {
     var partials = data[3];
-    data[3] = partials ? composeArgs(partials, value, source[4]) : copyArray(value);
-    data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : copyArray(source[4]);
+    data[3] = partials ? composeArgs(partials, value, source[4]) : value;
+    data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];
   }
   // Compose partial right arguments.
   value = source[5];
   if (value) {
     partials = data[5];
-    data[5] = partials ? composeArgsRight(partials, value, source[6]) : copyArray(value);
-    data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : copyArray(source[6]);
+    data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;
+    data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];
   }
   // Use source `argPos` if available.
   value = source[7];
   if (value) {
-    data[7] = copyArray(value);
+    data[7] = value;
   }
   // Use source `ary` if it's smaller.
   if (srcBitmask & ARY_FLAG) {

_reHasComplexSymbol.js

@@ -0,0 +1,13 @@
+/** Used to compose unicode character classes. */
+var rsAstralRange = '\\ud800-\\udfff',
+    rsComboMarksRange = '\\u0300-\\u036f\\ufe20-\\ufe23',
+    rsComboSymbolsRange = '\\u20d0-\\u20f0',
+    rsVarRange = '\\ufe0e\\ufe0f';
+
+/** Used to compose unicode capture groups. */
+var rsZWJ = '\\u200d';
+
+/** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
+var reHasComplexSymbol = RegExp('[' + rsZWJ + rsAstralRange  + rsComboMarksRange + rsComboSymbolsRange + rsVarRange + ']');
+
+module.exports = reHasComplexSymbol;

_stringSize.js

@@ -1,3 +1,5 @@
+var reHasComplexSymbol = require('./_reHasComplexSymbol');
+
 /** Used to compose unicode character classes. */
 var rsAstralRange = '\\ud800-\\udfff',
     rsComboMarksRange = '\\u0300-\\u036f\\ufe20-\\ufe23',
@@ -24,9 +26,6 @@ var reOptMod = rsModifier + '?',
 /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */
 var reComplexSymbol = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');
 
-/** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
-var reHasComplexSymbol = RegExp('[' + rsZWJ + rsAstralRange  + rsComboMarksRange + rsComboSymbolsRange + rsVarRange + ']');
-
 /**
  * Gets the number of symbols in `string`.
  *

_toKey.js

@@ -0,0 +1,21 @@
+var isSymbol = require('./isSymbol');
+
+/** Used as references for various `Number` constants. */
+var INFINITY = 1 / 0;
+
+/**
+ * Converts `value` to a string key if it's not a string or symbol.
+ *
+ * @private
+ * @param {*} value The value to inspect.
+ * @returns {string|symbol} Returns the key.
+ */
+function toKey(value) {
+  if (typeof value == 'string' || isSymbol(value)) {
+    return value;
+  }
+  var result = (value + '');
+  return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
+}
+
+module.exports = toKey;

_toSource.js

@@ -1,6 +1,3 @@
-var isFunction = require('./isFunction'),
-    toString = require('./toString');
-
 /** Used to resolve the decompiled source of functions. */
 var funcToString = Function.prototype.toString;
 
@@ -12,12 +9,15 @@ var funcToString = Function.prototype.toString;
  * @returns {string} Returns the source code.
  */
 function toSource(func) {
-  if (isFunction(func)) {
+  if (func != null) {
     try {
       return funcToString.call(func);
     } catch (e) {}
+    try {
+      return (func + '');
+    } catch (e) {}
   }
-  return toString(func);
+  return '';
 }
 
 module.exports = toSource;

array.js

@@ -25,6 +25,7 @@ module.exports = {
   'join': require('./join'),
   'last': require('./last'),
   'lastIndexOf': require('./lastIndexOf'),
+  'nth': require('./nth'),
   'pull': require('./pull'),
   'pullAll': require('./pullAll'),
   'pullAllBy': require('./pullAllBy'),

assign.js

@@ -32,6 +32,7 @@ var nonEnumShadows = !propertyIsEnumerable.call({ 'valueOf': 1 }, 'valueOf');
  * @param {Object} object The destination object.
  * @param {...Object} [sources] The source objects.
  * @returns {Object} Returns `object`.
+ * @see _.assignIn
  * @example
  *
  * function Foo() {

assignIn.js

@@ -28,6 +28,7 @@ var nonEnumShadows = !propertyIsEnumerable.call({ 'valueOf': 1 }, 'valueOf');
  * @param {Object} object The destination object.
  * @param {...Object} [sources] The source objects.
  * @returns {Object} Returns `object`.
+ * @see _.assign
  * @example
  *
  * function Foo() {

assignInWith.js

@@ -1,11 +1,11 @@
-var copyObjectWith = require('./_copyObjectWith'),
+var copyObject = require('./_copyObject'),
     createAssigner = require('./_createAssigner'),
     keysIn = require('./keysIn');
 
 /**
  * This method is like `_.assignIn` except that it accepts `customizer`
  * which is invoked to produce the assigned values. If `customizer` returns
- * `undefined` assignment is handled by the method instead. The `customizer`
+ * `undefined`, assignment is handled by the method instead. The `customizer`
  * is invoked with five arguments: (objValue, srcValue, key, object, source).
  *
  * **Note:** This method mutates `object`.
@@ -19,6 +19,7 @@ var copyObjectWith = require('./_copyObjectWith'),
  * @param {...Object} sources The source objects.
  * @param {Function} [customizer] The function to customize assigned values.
  * @returns {Object} Returns `object`.
+ * @see _.assignWith
  * @example
  *
  * function customizer(objValue, srcValue) {
@@ -31,7 +32,7 @@ var copyObjectWith = require('./_copyObjectWith'),
  * // => { 'a': 1, 'b': 2 }
  */
 var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {
-  copyObjectWith(source, keysIn(source), object, customizer);
+  copyObject(source, keysIn(source), object, customizer);
 });
 
 module.exports = assignInWith;

assignWith.js

@@ -1,11 +1,11 @@
-var copyObjectWith = require('./_copyObjectWith'),
+var copyObject = require('./_copyObject'),
     createAssigner = require('./_createAssigner'),
     keys = require('./keys');
 
 /**
  * This method is like `_.assign` except that it accepts `customizer`
  * which is invoked to produce the assigned values. If `customizer` returns
- * `undefined` assignment is handled by the method instead. The `customizer`
+ * `undefined`, assignment is handled by the method instead. The `customizer`
  * is invoked with five arguments: (objValue, srcValue, key, object, source).
  *
  * **Note:** This method mutates `object`.
@@ -18,6 +18,7 @@ var copyObjectWith = require('./_copyObjectWith'),
  * @param {...Object} sources The source objects.
  * @param {Function} [customizer] The function to customize assigned values.
  * @returns {Object} Returns `object`.
+ * @see _.assignInWith
  * @example
  *
  * function customizer(objValue, srcValue) {
@@ -30,7 +31,7 @@ var copyObjectWith = require('./_copyObjectWith'),
  * // => { 'a': 1, 'b': 2 }
  */
 var assignWith = createAssigner(function(object, source, srcIndex, customizer) {
-  copyObjectWith(source, keys(source), object, customizer);
+  copyObject(source, keys(source), object, customizer);
 });
 
 module.exports = assignWith;

at.js

@@ -10,8 +10,7 @@ var baseAt = require('./_baseAt'),
  * @since 1.0.0
  * @category Object
  * @param {Object} object The object to iterate over.
- * @param {...(string|string[])} [paths] The property paths of elements to pick,
- *  specified individually or in arrays.
+ * @param {...(string|string[])} [paths] The property paths of elements to pick.
  * @returns {Array} Returns the new array of picked elements.
  * @example
  *

bindAll.js

@@ -1,7 +1,8 @@
 var arrayEach = require('./_arrayEach'),
     baseFlatten = require('./_baseFlatten'),
     bind = require('./bind'),
-    rest = require('./rest');
+    rest = require('./rest'),
+    toKey = require('./_toKey');
 
 /**
  * Binds methods of an object to the object itself, overwriting the existing
@@ -14,8 +15,7 @@ var arrayEach = require('./_arrayEach'),
  * @memberOf _
  * @category Util
  * @param {Object} object The object to bind and assign the bound methods to.
- * @param {...(string|string[])} methodNames The object method names to bind,
- *  specified individually or in arrays.
+ * @param {...(string|string[])} methodNames The object method names to bind.
  * @returns {Object} Returns `object`.
  * @example
  *
@@ -32,6 +32,7 @@ var arrayEach = require('./_arrayEach'),
  */
 var bindAll = rest(function(object, methodNames) {
   arrayEach(baseFlatten(methodNames, 1), function(key) {
+    key = toKey(key);
     object[key] = bind(object[key], object);
   });
   return object;

clone.js

@@ -17,6 +17,7 @@ var baseClone = require('./_baseClone');
  * @category Lang
  * @param {*} value The value to clone.
  * @returns {*} Returns the cloned value.
+ * @see _.cloneDeep
  * @example
  *
  * var objects = [{ 'a': 1 }, { 'b': 2 }];

cloneDeep.js

@@ -9,6 +9,7 @@ var baseClone = require('./_baseClone');
  * @category Lang
  * @param {*} value The value to recursively clone.
  * @returns {*} Returns the deep cloned value.
+ * @see _.clone
  * @example
  *
  * var objects = [{ 'a': 1 }, { 'b': 2 }];

cloneDeepWith.js

@@ -10,6 +10,7 @@ var baseClone = require('./_baseClone');
  * @param {*} value The value to recursively clone.
  * @param {Function} [customizer] The function to customize cloning.
  * @returns {*} Returns the deep cloned value.
+ * @see _.cloneWith
  * @example
  *
  * function customizer(value) {

cloneWith.js

@@ -2,7 +2,7 @@ var baseClone = require('./_baseClone');
 
 /**
  * This method is like `_.clone` except that it accepts `customizer` which
- * is invoked to produce the cloned value. If `customizer` returns `undefined`
+ * is invoked to produce the cloned value. If `customizer` returns `undefined`,
  * cloning is handled by the method instead. The `customizer` is invoked with
  * up to four arguments; (value [, index|key, object, stack]).
  *
@@ -13,6 +13,7 @@ var baseClone = require('./_baseClone');
  * @param {*} value The value to clone.
  * @param {Function} [customizer] The function to customize cloning.
  * @returns {*} Returns the cloned value.
+ * @see _.cloneDeepWith
  * @example
  *
  * function customizer(value) {

cond.js

@@ -7,7 +7,7 @@ var apply = require('./_apply'),
 var FUNC_ERROR_TEXT = 'Expected a function';
 
 /**
- * Creates a function that iterates over `pairs` invoking the corresponding
+ * Creates a function that iterates over `pairs` and invokes the corresponding
  * function of the first predicate to return truthy. The predicate-function
  * pairs are invoked with the `this` binding and arguments of the created
  * function.

core.js

@@ -1,6 +1,6 @@
 /**
  * @license
- * lodash 4.8.1 (Custom Build) <https://lodash.com/>
+ * lodash 4.11.2 (Custom Build) <https://lodash.com/>
  * Build: `lodash core -o ./dist/lodash.core.js`
  * Copyright jQuery Foundation and other contributors <https://jquery.org/>
  * Released under MIT license <https://lodash.com/license>
@@ -13,7 +13,7 @@
   var undefined;
 
   /** Used as the semantic version number. */
-  var VERSION = '4.8.1';
+  var VERSION = '4.11.2';
 
   /** Used as the `TypeError` message for "Functions" methods. */
   var FUNC_ERROR_TEXT = 'Expected a function';
@@ -130,35 +130,6 @@
     return array;
   }
 
-  /**
-   * The base implementation of methods like `_.max` and `_.min` which accepts a
-   * `comparator` to determine the extremum value.
-   *
-   * @private
-   * @param {Array} array The array to iterate over.
-   * @param {Function} iteratee The iteratee invoked per iteration.
-   * @param {Function} comparator The comparator used to compare values.
-   * @returns {*} Returns the extremum value.
-   */
-  function baseExtremum(array, iteratee, comparator) {
-    var index = -1,
-        length = array.length;
-
-    while (++index < length) {
-      var value = array[index],
-          current = iteratee(value);
-
-      if (current != null && (computed === undefined
-            ? current === current
-            : comparator(current, computed)
-          )) {
-        var computed = current,
-            result = value;
-      }
-    }
-    return result;
-  }
-
   /**
    * The base implementation of methods like `_.find` and `_.findKey`, without
    * support for iteratee shorthands, which iterates over `collection` using
@@ -251,38 +222,6 @@
     return (value && value.Object === Object) ? value : null;
   }
 
-  /**
-   * Compares values to sort them in ascending order.
-   *
-   * @private
-   * @param {*} value The value to compare.
-   * @param {*} other The other value to compare.
-   * @returns {number} Returns the sort order indicator for `value`.
-   */
-  function compareAscending(value, other) {
-    if (value !== other) {
-      var valIsNull = value === null,
-          valIsUndef = value === undefined,
-          valIsReflexive = value === value;
-
-      var othIsNull = other === null,
-          othIsUndef = other === undefined,
-          othIsReflexive = other === other;
-
-      if ((value > other && !othIsNull) || !valIsReflexive ||
-          (valIsNull && !othIsUndef && othIsReflexive) ||
-          (valIsUndef && othIsReflexive)) {
-        return 1;
-      }
-      if ((value < other && !valIsNull) || !othIsReflexive ||
-          (othIsNull && !valIsUndef && valIsReflexive) ||
-          (othIsUndef && valIsReflexive)) {
-        return -1;
-      }
-    }
-    return 0;
-  }
-
   /**
    * Used by `_.escape` to convert characters to HTML entities.
    *
@@ -313,20 +252,6 @@
     return result;
   }
 
-  /**
-   * Checks if `value` is a valid array-like index.
-   *
-   * @private
-   * @param {*} value The value to check.
-   * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
-   * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
-   */
-  function isIndex(value, length) {
-    value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1;
-    length = length == null ? MAX_SAFE_INTEGER : length;
-    return value > -1 && value % 1 == 0 && value < length;
-  }
-
   /**
    * Converts `iterator` to an array.
    *
@@ -379,9 +304,6 @@
       nativeKeys = Object.keys,
       nativeMax = Math.max;
 
-  /** Detect if properties shadowing those on `Object.prototype` are non-enumerable. */
-  var nonEnumShadows = !propertyIsEnumerable.call({ 'valueOf': 1 }, 'valueOf');
-
   /*------------------------------------------------------------------------*/
 
   /**
@@ -402,9 +324,9 @@
    * Shortcut fusion is an optimization to merge iteratee calls; this avoids
    * the creation of intermediate arrays and can greatly reduce the number of
    * iteratee executions. Sections of a chain sequence qualify for shortcut
-   * fusion if the section is applied to an array of at least two hundred
-   * elements and any iteratees accept only one argument. The heuristic for
-   * whether a section qualifies for shortcut fusion is subject to change.
+   * fusion if the section is applied to an array of at least `200` elements
+   * and any iteratees accept only one argument. The heuristic for whether a
+   * section qualifies for shortcut fusion is subject to change.
    *
    * Chaining is supported in custom builds as long as the `_#value` method is
    * directly or indirectly included in the build.
@@ -464,7 +386,7 @@
    * `isSet`, `isString`, `isUndefined`, `isTypedArray`, `isWeakMap`, `isWeakSet`,
    * `join`, `kebabCase`, `last`, `lastIndexOf`, `lowerCase`, `lowerFirst`,
    * `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, `min`, `minBy`, `multiply`,
-   * `noConflict`, `noop`, `now`, `pad`, `padEnd`, `padStart`, `parseInt`,
+   * `noConflict`, `noop`, `now`, `nth`, `pad`, `padEnd`, `padStart`, `parseInt`,
    * `pop`, `random`, `reduce`, `reduceRight`, `repeat`, `result`, `round`,
    * `runInContext`, `sample`, `shift`, `size`, `snakeCase`, `some`, `sortedIndex`,
    * `sortedIndexBy`, `sortedLastIndex`, `sortedLastIndexBy`, `startCase`,
@@ -616,6 +538,35 @@
     return result;
   }
 
+  /**
+   * The base implementation of methods like `_.max` and `_.min` which accepts a
+   * `comparator` to determine the extremum value.
+   *
+   * @private
+   * @param {Array} array The array to iterate over.
+   * @param {Function} iteratee The iteratee invoked per iteration.
+   * @param {Function} comparator The comparator used to compare values.
+   * @returns {*} Returns the extremum value.
+   */
+  function baseExtremum(array, iteratee, comparator) {
+    var index = -1,
+        length = array.length;
+
+    while (++index < length) {
+      var value = array[index],
+          current = iteratee(value);
+
+      if (current != null && (computed === undefined
+            ? (current === current && !false)
+            : comparator(current, computed)
+          )) {
+        var computed = current,
+            result = value;
+      }
+    }
+    return result;
+  }
+
   /**
    * The base implementation of `_.filter` without support for iteratee shorthands.
    *
@@ -640,23 +591,24 @@
    * @private
    * @param {Array} array The array to flatten.
    * @param {number} depth The maximum recursion depth.
-   * @param {boolean} [isStrict] Restrict flattening to arrays-like objects.
+   * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.
+   * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.
    * @param {Array} [result=[]] The initial result value.
    * @returns {Array} Returns the new flattened array.
    */
-  function baseFlatten(array, depth, isStrict, result) {
-    result || (result = []);
-
+  function baseFlatten(array, depth, predicate, isStrict, result) {
     var index = -1,
         length = array.length;
 
+    predicate || (predicate = isFlattenable);
+    result || (result = []);
+
     while (++index < length) {
       var value = array[index];
-      if (depth > 0 && isArrayLikeObject(value) &&
-          (isStrict || isArray(value) || isArguments(value))) {
+      if (depth > 0 && predicate(value)) {
         if (depth > 1) {
           // Recursively flatten arrays (susceptible to call stack limits).
-          baseFlatten(value, depth - 1, isStrict, result);
+          baseFlatten(value, depth - 1, predicate, isStrict, result);
         } else {
           arrayPush(result, value);
         }
@@ -669,7 +621,7 @@
 
   /**
    * The base implementation of `baseForOwn` which iterates over `object`
-   * properties returned by `keysFunc` invoking `iteratee` for each property.
+   * properties returned by `keysFunc` and invokes `iteratee` for each property.
    * Iteratee functions may exit iteration early by explicitly returning `false`.
    *
    * @private
@@ -707,6 +659,19 @@
     });
   }
 
+  /**
+   * The base implementation of `_.gt` which doesn't coerce arguments to numbers.
+   *
+   * @private
+   * @param {*} value The value to compare.
+   * @param {*} other The other value to compare.
+   * @returns {boolean} Returns `true` if `value` is greater than `other`,
+   *  else `false`.
+   */
+  function baseGt(value, other) {
+    return value > other;
+  }
+
   /**
    * The base implementation of `_.isEqual` which supports partial comparisons
    * and tracks traversed objects.
@@ -855,6 +820,19 @@
     };
   }
 
+  /**
+   * The base implementation of `_.lt` which doesn't coerce arguments to numbers.
+   *
+   * @private
+   * @param {*} value The value to compare.
+   * @param {*} other The other value to compare.
+   * @returns {boolean} Returns `true` if `value` is less than `other`,
+   *  else `false`.
+   */
+  function baseLt(value, other) {
+    return value < other;
+  }
+
   /**
    * The base implementation of `_.map` without support for iteratee shorthands.
    *
@@ -1011,19 +989,45 @@
   }
 
   /**
-   * Copies properties of `source` to `object`.
+   * Compares values to sort them in ascending order.
    *
    * @private
-   * @param {Object} source The object to copy properties from.
-   * @param {Array} props The property identifiers to copy.
-   * @param {Object} [object={}] The object to copy properties to.
-   * @returns {Object} Returns `object`.
+   * @param {*} value The value to compare.
+   * @param {*} other The other value to compare.
+   * @returns {number} Returns the sort order indicator for `value`.
    */
-  var copyObject = copyObjectWith;
+  function compareAscending(value, other) {
+    if (value !== other) {
+      var valIsDefined = value !== undefined,
+          valIsNull = value === null,
+          valIsReflexive = value === value,
+          valIsSymbol = false;
+
+      var othIsDefined = other !== undefined,
+          othIsNull = other === null,
+          othIsReflexive = other === other,
+          othIsSymbol = false;
+
+      if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||
+          (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||
+          (valIsNull && othIsDefined && othIsReflexive) ||
+          (!valIsDefined && othIsReflexive) ||
+          !valIsReflexive) {
+        return 1;
+      }
+      if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||
+          (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||
+          (othIsNull && valIsDefined && valIsReflexive) ||
+          (!othIsDefined && valIsReflexive) ||
+          !othIsReflexive) {
+        return -1;
+      }
+    }
+    return 0;
+  }
 
   /**
-   * This function is like `copyObject` except that it accepts a function to
-   * customize copied values.
+   * Copies properties of `source` to `object`.
    *
    * @private
    * @param {Object} source The object to copy properties from.
@@ -1032,7 +1036,7 @@
    * @param {Function} [customizer] The function to customize copied values.
    * @returns {Object} Returns `object`.
    */
-  function copyObjectWith(source, props, object, customizer) {
+  function copyObject(source, props, object, customizer) {
     object || (object = {});
 
     var index = -1,
@@ -1393,6 +1397,32 @@
     return null;
   }
 
+  /**
+   * Checks if `value` is a flattenable `arguments` object or array.
+   *
+   * @private
+   * @param {*} value The value to check.
+   * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.
+   */
+  function isFlattenable(value) {
+    return isArrayLikeObject(value) && (isArray(value) || isArguments(value));
+  }
+
+  /**
+   * Checks if `value` is a valid array-like index.
+   *
+   * @private
+   * @param {*} value The value to check.
+   * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
+   * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
+   */
+  function isIndex(value, length) {
+    length = length == null ? MAX_SAFE_INTEGER : length;
+    return !!length &&
+      (typeof value == 'number' || reIsUint.test(value)) &&
+      (value > -1 && value % 1 == 0 && value < length);
+  }
+
   /**
    * Checks if `value` is likely a prototype object.
    *
@@ -1407,6 +1437,15 @@
     return value === proto;
   }
 
+  /**
+   * Converts `value` to a string key if it's not a string or symbol.
+   *
+   * @private
+   * @param {*} value The value to inspect.
+   * @returns {string|symbol} Returns the key.
+   */
+  var toKey = String;
+
   /*------------------------------------------------------------------------*/
 
   /**
@@ -1521,14 +1560,14 @@
    * // => undefined
    */
   function head(array) {
-    return array ? array[0] : undefined;
+    return (array && array.length) ? array[0] : undefined;
   }
 
   /**
    * Gets the index at which the first occurrence of `value` is found in `array`
    * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
-   * for equality comparisons. If `fromIndex` is negative, it's used as the offset
-   * from the end of `array`.
+   * for equality comparisons. If `fromIndex` is negative, it's used as the
+   * offset from the end of `array`.
    *
    * @static
    * @memberOf _
@@ -1806,6 +1845,7 @@
    * @param {Array|Function|Object|string} [predicate=_.identity]
    *  The function invoked per iteration.
    * @returns {Array} Returns the new filtered array.
+   * @see _.reject
    * @example
    *
    * var users = [
@@ -1873,7 +1913,7 @@
   }
 
   /**
-   * Iterates over elements of `collection` invoking `iteratee` for each element.
+   * Iterates over elements of `collection` and invokes `iteratee` for each element.
    * The iteratee is invoked with three arguments: (value, index|key, collection).
    * Iteratee functions may exit iteration early by explicitly returning `false`.
    *
@@ -1889,6 +1929,7 @@
    * @param {Array|Object} collection The collection to iterate over.
    * @param {Function} [iteratee=_.identity] The function invoked per iteration.
    * @returns {Array|Object} Returns `collection`.
+   * @see _.forEachRight
    * @example
    *
    * _([1, 2]).forEach(function(value) {
@@ -1916,8 +1957,8 @@
    * The guarded methods are:
    * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,
    * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,
-   * `sampleSize`, `slice`, `some`, `sortBy`, `take`, `takeRight`, `template`,
-   * `trim`, `trimEnd`, `trimStart`, and `words`
+   * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,
+   * `template`, `trim`, `trimEnd`, `trimStart`, and `words`
    *
    * @static
    * @memberOf _
@@ -1956,7 +1997,7 @@
    * Reduces `collection` to a value which is the accumulated result of running
    * each element in `collection` thru `iteratee`, where each successive
    * invocation is supplied the return value of the previous. If `accumulator`
-   * is not given the first element of `collection` is used as the initial
+   * is not given, the first element of `collection` is used as the initial
    * value. The iteratee is invoked with four arguments:
    * (accumulator, value, index|key, collection).
    *
@@ -1975,6 +2016,7 @@
    * @param {Function} [iteratee=_.identity] The function invoked per iteration.
    * @param {*} [accumulator] The initial value.
    * @returns {*} Returns the accumulated value.
+   * @see _.reduceRight
    * @example
    *
    * _.reduce([1, 2], function(sum, n) {
@@ -2075,8 +2117,7 @@
    * @category Collection
    * @param {Array|Object} collection The collection to iterate over.
    * @param {...(Array|Array[]|Function|Function[]|Object|Object[]|string|string[])}
-   *  [iteratees=[_.identity]] The iteratees to sort by, specified individually
-   *  or in arrays.
+   *  [iteratees=[_.identity]] The iteratees to sort by.
    * @returns {Array} Returns the new sorted array.
    * @example
    *
@@ -2389,6 +2430,7 @@
    * @category Lang
    * @param {*} value The value to clone.
    * @returns {*} Returns the cloned value.
+   * @see _.cloneDeep
    * @example
    *
    * var objects = [{ 'a': 1 }, { 'b': 2 }];
@@ -2440,32 +2482,6 @@
     return value === other || (value !== value && other !== other);
   }
 
-  /**
-   * Checks if `value` is greater than `other`.
-   *
-   * @static
-   * @memberOf _
-   * @since 3.9.0
-   * @category Lang
-   * @param {*} value The value to compare.
-   * @param {*} other The other value to compare.
-   * @returns {boolean} Returns `true` if `value` is greater than `other`,
-   *  else `false`.
-   * @example
-   *
-   * _.gt(3, 1);
-   * // => true
-   *
-   * _.gt(3, 3);
-   * // => false
-   *
-   * _.gt(1, 3);
-   * // => false
-   */
-  function gt(value, other) {
-    return value > other;
-  }
-
   /**
    * Checks if `value` is likely an `arguments` object.
    *
@@ -2659,12 +2675,7 @@
           isFunction(value.splice) || isArguments(value))) {
       return !value.length;
     }
-    for (var key in value) {
-      if (hasOwnProperty.call(value, key)) {
-        return false;
-      }
-    }
-    return !(nonEnumShadows && keys(value).length);
+    return !keys(value).length;
   }
 
   /**
@@ -3001,32 +3012,6 @@
     return value === undefined;
   }
 
-  /**
-   * Checks if `value` is less than `other`.
-   *
-   * @static
-   * @memberOf _
-   * @since 3.9.0
-   * @category Lang
-   * @param {*} value The value to compare.
-   * @param {*} other The other value to compare.
-   * @returns {boolean} Returns `true` if `value` is less than `other`,
-   *  else `false`.
-   * @example
-   *
-   * _.lt(1, 3);
-   * // => true
-   *
-   * _.lt(3, 3);
-   * // => false
-   *
-   * _.lt(3, 1);
-   * // => false
-   */
-  function lt(value, other) {
-    return value < other;
-  }
-
   /**
    * Converts `value` to an array.
    *
@@ -3111,8 +3096,8 @@
   var toNumber = Number;
 
   /**
-   * Converts `value` to a string if it's not one. An empty string is returned
-   * for `null` and `undefined` values. The sign of `-0` is preserved.
+   * Converts `value` to a string. An empty string is returned for `null`
+   * and `undefined` values. The sign of `-0` is preserved.
    *
    * @static
    * @memberOf _
@@ -3155,6 +3140,7 @@
    * @param {Object} object The destination object.
    * @param {...Object} [sources] The source objects.
    * @returns {Object} Returns `object`.
+   * @see _.assignIn
    * @example
    *
    * function Foo() {
@@ -3189,6 +3175,7 @@
    * @param {Object} object The destination object.
    * @param {...Object} [sources] The source objects.
    * @returns {Object} Returns `object`.
+   * @see _.assign
    * @example
    *
    * function Foo() {
@@ -3212,7 +3199,7 @@
   /**
    * This method is like `_.assignIn` except that it accepts `customizer`
    * which is invoked to produce the assigned values. If `customizer` returns
-   * `undefined` assignment is handled by the method instead. The `customizer`
+   * `undefined`, assignment is handled by the method instead. The `customizer`
    * is invoked with five arguments: (objValue, srcValue, key, object, source).
    *
    * **Note:** This method mutates `object`.
@@ -3226,6 +3213,7 @@
    * @param {...Object} sources The source objects.
    * @param {Function} [customizer] The function to customize assigned values.
    * @returns {Object} Returns `object`.
+   * @see _.assignWith
    * @example
    *
    * function customizer(objValue, srcValue) {
@@ -3238,12 +3226,12 @@
    * // => { 'a': 1, 'b': 2 }
    */
   var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {
-    copyObjectWith(source, keysIn(source), object, customizer);
+    copyObject(source, keysIn(source), object, customizer);
   });
 
   /**
    * Creates an object that inherits from the `prototype` object. If a
-   * `properties` object is given its own enumerable string keyed properties
+   * `properties` object is given, its own enumerable string keyed properties
    * are assigned to the created object.
    *
    * @static
@@ -3295,6 +3283,7 @@
    * @param {Object} object The destination object.
    * @param {...Object} [sources] The source objects.
    * @returns {Object} Returns `object`.
+   * @see _.defaultsDeep
    * @example
    *
    * _.defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' });
@@ -3317,16 +3306,16 @@
    * @returns {boolean} Returns `true` if `path` exists, else `false`.
    * @example
    *
-   * var object = { 'a': { 'b': { 'c': 3 } } };
-   * var other = _.create({ 'a': _.create({ 'b': _.create({ 'c': 3 }) }) });
+   * var object = { 'a': { 'b': 2 } };
+   * var other = _.create({ 'a': _.create({ 'b': 2 }) });
    *
    * _.has(object, 'a');
    * // => true
    *
-   * _.has(object, 'a.b.c');
+   * _.has(object, 'a.b');
    * // => true
    *
-   * _.has(object, ['a', 'b', 'c']);
+   * _.has(object, ['a', 'b']);
    * // => true
    *
    * _.has(other, 'a');
@@ -3435,8 +3424,7 @@
    * @memberOf _
    * @category Object
    * @param {Object} object The source object.
-   * @param {...(string|string[])} [props] The property identifiers to pick,
-   *  specified individually or in arrays.
+   * @param {...(string|string[])} [props] The property identifiers to pick.
    * @returns {Object} Returns the new object.
    * @example
    *
@@ -3446,7 +3434,7 @@
    * // => { 'a': 1, 'c': 3 }
    */
   var pick = rest(function(object, props) {
-    return object == null ? {} : basePick(object, baseFlatten(props, 1));
+    return object == null ? {} : basePick(object, baseMap(baseFlatten(props, 1), toKey));
   });
 
   /**
@@ -3583,8 +3571,8 @@
 
   /**
    * Creates a function that invokes `func` with the arguments of the created
-   * function. If `func` is a property name the created function returns the
-   * property value for a given element. If `func` is an array or object the
+   * function. If `func` is a property name, the created function returns the
+   * property value for a given element. If `func` is an array or object, the
    * created function returns `true` for elements that contain the equivalent
    * source properties, otherwise it returns `false`.
    *
@@ -3655,7 +3643,7 @@
 
   /**
    * Adds all own enumerable string keyed function properties of a source
-   * object to the destination object. If `object` is a function then methods
+   * object to the destination object. If `object` is a function, then methods
    * are added to its prototype as well.
    *
    * **Note:** Use `_.runInContext` to create a pristine `lodash` function to
@@ -3700,7 +3688,7 @@
       object = this;
       methodNames = baseFunctions(source, keys(source));
     }
-    var chain = (isObject(options) && 'chain' in options) ? options.chain : true,
+    var chain = !(isObject(options) && 'chain' in options) || !!options.chain,
         isFunc = isFunction(object);
 
     baseEach(methodNames, function(methodName) {
@@ -3765,7 +3753,7 @@
   }
 
   /**
-   * Generates a unique ID. If `prefix` is given the ID is appended to it.
+   * Generates a unique ID. If `prefix` is given, the ID is appended to it.
    *
    * @static
    * @since 0.1.0
@@ -3789,7 +3777,7 @@
   /*------------------------------------------------------------------------*/
 
   /**
-   * Computes the maximum value of `array`. If `array` is empty or falsey
+   * Computes the maximum value of `array`. If `array` is empty or falsey,
    * `undefined` is returned.
    *
    * @static
@@ -3808,12 +3796,12 @@
    */
   function max(array) {
     return (array && array.length)
-      ? baseExtremum(array, identity, gt)
+      ? baseExtremum(array, identity, baseGt)
       : undefined;
   }
 
   /**
-   * Computes the minimum value of `array`. If `array` is empty or falsey
+   * Computes the minimum value of `array`. If `array` is empty or falsey,
    * `undefined` is returned.
    *
    * @static
@@ -3832,7 +3820,7 @@
    */
   function min(array) {
     return (array && array.length)
-      ? baseExtremum(array, identity, lt)
+      ? baseExtremum(array, identity, baseLt)
       : undefined;
   }
 
@@ -3959,9 +3947,11 @@
 
   /*--------------------------------------------------------------------------*/
 
-  // Expose lodash on the free variable `window` or `self` when available. This
-  // prevents errors in cases where lodash is loaded by a script tag in the presence
-  // of an AMD loader. See http://requirejs.org/docs/errors.html#mismatch for more details.
+  // Expose Lodash on the free variable `window` or `self` when available so it's
+  // globally accessible, even when bundled with Browserify, Webpack, etc. This
+  // also prevents errors in cases where Lodash is loaded by a script tag in the
+  // presence of an AMD loader. See http://requirejs.org/docs/errors.html#mismatch
+  // for more details. Use `_.noConflict` to remove Lodash from the global object.
   (freeWindow || freeSelf || {})._ = lodash;
 
   // Some AMD build optimizers like r.js check for condition patterns like the following:

core.min.js

@@ -1,30 +1,30 @@
 /**
  * @license
- * lodash 4.8.1 (Custom Build) lodash.com/license | Underscore.js 1.8.3 underscorejs.org/LICENSE
+ * lodash 4.11.2 (Custom Build) lodash.com/license | Underscore.js 1.8.3 underscorejs.org/LICENSE
  * Build: `lodash core -o ./dist/lodash.core.js`
  */
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+},c.head=P,c.identity=an,c.indexOf=function(n,t,r){var e=n?n.length:0;r=typeof r=="number"?0>r?qn(e+r,0):r:0,r=(r||0)-1;for(var u=t===t;++r<e;){var o=n[r];if(u?o===t:o!==o)return r}return-1},c.isArguments=W,c.isArray=Vn,c.isBoolean=function(n){return true===n||false===n||tn(n)&&"[object Boolean]"==Sn.call(n)},c.isDate=function(n){return tn(n)&&"[object Date]"==Sn.call(n)},c.isEmpty=function(n){return X(n)&&(Vn(n)||en(n)||Y(n.splice)||W(n))?!n.length:!on(n).length},c.isEqual=function(n,t){return d(n,t)},
+c.isFinite=function(n){return typeof n=="number"&&In(n)},c.isFunction=Y,c.isNaN=function(n){return rn(n)&&n!=+n},c.isNull=function(n){return null===n},c.isNumber=rn,c.isObject=nn,c.isRegExp=function(n){return nn(n)&&"[object RegExp]"==Sn.call(n)},c.isString=en,c.isUndefined=function(n){return n===pn},c.last=function(n){var t=n?n.length:0;return t?n[t-1]:pn},c.max=function(n){return n&&n.length?h(n,an,_):pn},c.min=function(n){return n&&n.length?h(n,an,x):pn},c.noConflict=function(){return On._===this&&(On._=Tn),
+this},c.noop=function(){},c.reduce=H,c.result=function(n,t,r){return t=null==n?pn:n[t],t===pn&&(t=r),Y(t)?t.call(n):t},c.size=function(n){return null==n?0:(n=X(n)?n:on(n),n.length)},c.some=function(n,t,r){return t=r?pn:t,T(n,m(t))},c.uniqueId=function(n){var t=++Nn;return un(n)+t},c.each=V,c.first=P,ln(c,function(){var n={};return g(c,function(t,r){kn.call(c.prototype,r)||(n[r]=t)}),n}(),{chain:false}),c.VERSION="4.11.2",zn("pop join replace reverse split push shift sort splice unshift".split(" "),function(n){
+var t=(/^(?:replace|split)$/.test(n)?String.prototype:An)[n],r=/^(?:push|sort|unshift)$/.test(n)?"tap":"thru",e=/^(?:pop|join|replace|shift)$/.test(n);c.prototype[n]=function(){var n=arguments;if(e&&!this.__chain__){var u=this.value();return t.apply(Vn(u)?u:[],n)}return this[r](function(r){return t.apply(Vn(r)?r:[],n)})}}),c.prototype.toJSON=c.prototype.valueOf=c.prototype.value=function(){return F(this.__wrapped__,this.__actions__)},(wn||mn||{})._=c,typeof define=="function"&&typeof define.amd=="object"&&define.amd? define(function(){
+return c}):_n&&dn?(jn&&((dn.exports=c)._=c),_n._=c):On._=c}).call(this);

create.js

@@ -3,7 +3,7 @@ var baseAssign = require('./_baseAssign'),
 
 /**
  * Creates an object that inherits from the `prototype` object. If a
- * `properties` object is given its own enumerable string keyed properties
+ * `properties` object is given, its own enumerable string keyed properties
  * are assigned to the created object.
  *
  * @static

debounce.js

@@ -23,7 +23,7 @@ var nativeMax = Math.max,
  * on the trailing edge of the timeout only if the debounced function is
  * invoked more than once during the `wait` timeout.
  *
- * See [David Corbacho's article](http://drupalmotion.com/article/debounce-and-throttle-visual-explanation)
+ * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
  * for details over the differences between `_.debounce` and `_.throttle`.
  *
  * @static
@@ -62,12 +62,13 @@ var nativeMax = Math.max,
 function debounce(func, wait, options) {
   var lastArgs,
       lastThis,
+      maxWait,
       result,
       timerId,
       lastCallTime = 0,
       lastInvokeTime = 0,
       leading = false,
-      maxWait = false,
+      maxing = false,
       trailing = true;
 
   if (typeof func != 'function') {
@@ -76,7 +77,8 @@ function debounce(func, wait, options) {
   wait = toNumber(wait) || 0;
   if (isObject(options)) {
     leading = !!options.leading;
-    maxWait = 'maxWait' in options && nativeMax(toNumber(options.maxWait) || 0, wait);
+    maxing = 'maxWait' in options;
+    maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;
     trailing = 'trailing' in options ? !!options.trailing : trailing;
   }
 
@@ -104,7 +106,7 @@ function debounce(func, wait, options) {
         timeSinceLastInvoke = time - lastInvokeTime,
         result = wait - timeSinceLastCall;
 
-    return maxWait === false ? result : nativeMin(result, maxWait - timeSinceLastInvoke);
+    return maxing ? nativeMin(result, maxWait - timeSinceLastInvoke) : result;
   }
 
   function shouldInvoke(time) {
@@ -115,7 +117,7 @@ function debounce(func, wait, options) {
     // trailing edge, the system time has gone backwards and we're treating
     // it as the trailing edge, or we've hit the `maxWait` limit.
     return (!lastCallTime || (timeSinceLastCall >= wait) ||
-      (timeSinceLastCall < 0) || (maxWait !== false && timeSinceLastInvoke >= maxWait));
+      (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));
   }
 
   function timerExpired() {
@@ -164,10 +166,15 @@ function debounce(func, wait, options) {
       if (timerId === undefined) {
         return leadingEdge(lastCallTime);
       }
-      // Handle invocations in a tight loop.
-      clearTimeout(timerId);
+      if (maxing) {
+        // Handle invocations in a tight loop.
+        clearTimeout(timerId);
+        timerId = setTimeout(timerExpired, wait);
+        return invokeFunc(lastCallTime);
+      }
+    }
+    if (timerId === undefined) {
       timerId = setTimeout(timerExpired, wait);
-      return invokeFunc(lastCallTime);
     }
     return result;
   }

defaults.js

@@ -18,6 +18,7 @@ var apply = require('./_apply'),
  * @param {Object} object The destination object.
  * @param {...Object} [sources] The source objects.
  * @returns {Object} Returns `object`.
+ * @see _.defaultsDeep
  * @example
  *
  * _.defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' });

defaultsDeep.js

@@ -16,6 +16,7 @@ var apply = require('./_apply'),
  * @param {Object} object The destination object.
  * @param {...Object} [sources] The source objects.
  * @returns {Object} Returns `object`.
+ * @see _.defaults
  * @example
  *
  * _.defaultsDeep({ 'user': { 'name': 'barney' } }, { 'user': { 'name': 'fred', 'age': 36 } });

difference.js

@@ -16,6 +16,7 @@ var baseDifference = require('./_baseDifference'),
  * @param {Array} array The array to inspect.
  * @param {...Array} [values] The values to exclude.
  * @returns {Array} Returns the new array of filtered values.
+ * @see _.without, _.xor
  * @example
  *
  * _.difference([3, 2, 1], [4, 2]);
@@ -23,7 +24,7 @@ var baseDifference = require('./_baseDifference'),
  */
 var difference = rest(function(array, values) {
   return isArrayLikeObject(array)
-    ? baseDifference(array, baseFlatten(values, 1, true))
+    ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true))
     : [];
 });
 

differenceBy.js

@@ -35,7 +35,7 @@ var differenceBy = rest(function(array, values) {
     iteratee = undefined;
   }
   return isArrayLikeObject(array)
-    ? baseDifference(array, baseFlatten(values, 1, true), baseIteratee(iteratee))
+    ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), baseIteratee(iteratee))
     : [];
 });
 

differenceWith.js

@@ -31,7 +31,7 @@ var differenceWith = rest(function(array, values) {
     comparator = undefined;
   }
   return isArrayLikeObject(array)
-    ? baseDifference(array, baseFlatten(values, 1, true), undefined, comparator)
+    ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator)
     : [];
 });
 

endsWith.js

@@ -1,4 +1,5 @@
 var baseClamp = require('./_baseClamp'),
+    baseToString = require('./_baseToString'),
     toInteger = require('./toInteger'),
     toString = require('./toString');
 
@@ -27,7 +28,7 @@ var baseClamp = require('./_baseClamp'),
  */
 function endsWith(string, target, position) {
   string = toString(string);
-  target = typeof target == 'string' ? target : (target + '');
+  target = baseToString(target);
 
   var length = string.length;
   position = position === undefined

filter.js

@@ -16,6 +16,7 @@ var arrayFilter = require('./_arrayFilter'),
  * @param {Array|Function|Object|string} [predicate=_.identity]
  *  The function invoked per iteration.
  * @returns {Array} Returns the new filtered array.
+ * @see _.reject
  * @example
  *
  * var users = [

flow.js

@@ -11,6 +11,7 @@ var createFlow = require('./_createFlow');
  * @category Util
  * @param {...(Function|Function[])} [funcs] Functions to invoke.
  * @returns {Function} Returns the new function.
+ * @see _.flowRight
  * @example
  *
  * function square(n) {

flowRight.js

@@ -5,11 +5,12 @@ var createFlow = require('./_createFlow');
  * invokes the given functions from right to left.
  *
  * @static
- * @since 0.1.0
+ * @since 3.0.0
  * @memberOf _
  * @category Util
  * @param {...(Function|Function[])} [funcs] Functions to invoke.
  * @returns {Function} Returns the new function.
+ * @see _.flow
  * @example
  *
  * function square(n) {

forEach.js

@@ -4,7 +4,7 @@ var arrayEach = require('./_arrayEach'),
     isArray = require('./isArray');
 
 /**
- * Iterates over elements of `collection` invoking `iteratee` for each element.
+ * Iterates over elements of `collection` and invokes `iteratee` for each element.
  * The iteratee is invoked with three arguments: (value, index|key, collection).
  * Iteratee functions may exit iteration early by explicitly returning `false`.
  *
@@ -20,6 +20,7 @@ var arrayEach = require('./_arrayEach'),
  * @param {Array|Object} collection The collection to iterate over.
  * @param {Function} [iteratee=_.identity] The function invoked per iteration.
  * @returns {Array|Object} Returns `collection`.
+ * @see _.forEachRight
  * @example
  *
  * _([1, 2]).forEach(function(value) {

forEachRight.js

@@ -15,6 +15,7 @@ var arrayEachRight = require('./_arrayEachRight'),
  * @param {Array|Object} collection The collection to iterate over.
  * @param {Function} [iteratee=_.identity] The function invoked per iteration.
  * @returns {Array|Object} Returns `collection`.
+ * @see _.forEach
  * @example
  *
  * _.forEachRight([1, 2], function(value) {

forIn.js

@@ -4,9 +4,9 @@ var baseFor = require('./_baseFor'),
 
 /**
  * Iterates over own and inherited enumerable string keyed properties of an
- * object invoking `iteratee` for each property. The iteratee is invoked with
- * three arguments: (value, key, object). Iteratee functions may exit iteration
- * early by explicitly returning `false`.
+ * object and invokes `iteratee` for each property. The iteratee is invoked
+ * with three arguments: (value, key, object). Iteratee functions may exit
+ * iteration early by explicitly returning `false`.
  *
  * @static
  * @memberOf _
@@ -15,6 +15,7 @@ var baseFor = require('./_baseFor'),
  * @param {Object} object The object to iterate over.
  * @param {Function} [iteratee=_.identity] The function invoked per iteration.
  * @returns {Object} Returns `object`.
+ * @see _.forInRight
  * @example
  *
  * function Foo() {

forInRight.js

@@ -13,6 +13,7 @@ var baseForRight = require('./_baseForRight'),
  * @param {Object} object The object to iterate over.
  * @param {Function} [iteratee=_.identity] The function invoked per iteration.
  * @returns {Object} Returns `object`.
+ * @see _.forIn
  * @example
  *
  * function Foo() {

forOwn.js

@@ -2,10 +2,10 @@ var baseForOwn = require('./_baseForOwn'),
     baseIteratee = require('./_baseIteratee');
 
 /**
- * Iterates over own enumerable string keyed properties of an object invoking
- * `iteratee` for each property. The iteratee is invoked with three arguments:
- * (value, key, object). Iteratee functions may exit iteration early by
- * explicitly returning `false`.
+ * Iterates over own enumerable string keyed properties of an object and
+ * invokes `iteratee` for each property. The iteratee is invoked with three
+ * arguments: (value, key, object). Iteratee functions may exit iteration
+ * early by explicitly returning `false`.
  *
  * @static
  * @memberOf _
@@ -14,6 +14,7 @@ var baseForOwn = require('./_baseForOwn'),
  * @param {Object} object The object to iterate over.
  * @param {Function} [iteratee=_.identity] The function invoked per iteration.
  * @returns {Object} Returns `object`.
+ * @see _.forOwnRight
  * @example
  *
  * function Foo() {

forOwnRight.js

@@ -12,6 +12,7 @@ var baseForOwnRight = require('./_baseForOwnRight'),
  * @param {Object} object The object to iterate over.
  * @param {Function} [iteratee=_.identity] The function invoked per iteration.
  * @returns {Object} Returns `object`.
+ * @see _.forOwn
  * @example
  *
  * function Foo() {

fp/_mapping.js

@@ -30,17 +30,19 @@ exports.aliasToReal = {
   'init': 'initial',
   'invertObj': 'invert',
   'juxt': 'over',
-  'mapObj': 'mapValues',
   'omitAll': 'omit',
   'nAry': 'ary',
   'path': 'get',
   'pathEq': 'matchesProperty',
   'pathOr': 'getOr',
+  'paths': 'at',
   'pickAll': 'pick',
   'pipe': 'flow',
+  'pluck': 'map',
   'prop': 'get',
-  'propOf': 'propertyOf',
+  'propEq': 'matchesProperty',
   'propOr': 'getOr',
+  'props': 'at',
   'unapply': 'rest',
   'unnest': 'flatten',
   'useWith': 'overArgs',
@@ -68,16 +70,17 @@ exports.aryMethod = {
     'get', 'groupBy', 'gt', 'gte', 'has', 'hasIn', 'includes', 'indexOf',
     'intersection', 'invertBy', 'invoke', 'invokeMap', 'isEqual', 'isMatch',
     'join', 'keyBy', 'lastIndexOf', 'lt', 'lte', 'map', 'mapKeys', 'mapValues',
-    'matchesProperty', 'maxBy', 'meanBy', 'merge', 'minBy', 'multiply', 'omit', 'omitBy',
-    'overArgs', 'pad', 'padEnd', 'padStart', 'parseInt', 'partial', 'partialRight',
-    'partition', 'pick', 'pickBy', 'pull', 'pullAll', 'pullAt', 'random', 'range',
-    'rangeRight', 'rearg', 'reject', 'remove', 'repeat', 'restFrom', 'result',
-    'sampleSize', 'some', 'sortBy', 'sortedIndex', 'sortedIndexOf', 'sortedLastIndex',
-    'sortedLastIndexOf', 'sortedUniqBy', 'split', 'spreadFrom', 'startsWith',
-    'subtract', 'sumBy', 'take', 'takeRight', 'takeRightWhile', 'takeWhile', 'tap',
-    'throttle', 'thru', 'times', 'trimChars', 'trimCharsEnd', 'trimCharsStart',
-    'truncate', 'union', 'uniqBy', 'uniqWith', 'unset', 'unzipWith', 'without',
-    'wrap', 'xor', 'zip', 'zipObject', 'zipObjectDeep'
+    'matchesProperty', 'maxBy', 'meanBy', 'merge', 'minBy', 'multiply', 'nth',
+    'omit', 'omitBy', 'overArgs', 'pad', 'padEnd', 'padStart', 'parseInt',
+    'partial', 'partialRight', 'partition', 'pick', 'pickBy', 'pull', 'pullAll',
+    'pullAt', 'random', 'range', 'rangeRight', 'rearg', 'reject', 'remove',
+    'repeat', 'restFrom', 'result', 'sampleSize', 'some', 'sortBy', 'sortedIndex',
+    'sortedIndexOf', 'sortedLastIndex', 'sortedLastIndexOf', 'sortedUniqBy',
+    'split', 'spreadFrom', 'startsWith', 'subtract', 'sumBy', 'take', 'takeRight',
+    'takeRightWhile', 'takeWhile', 'tap', 'throttle', 'thru', 'times', 'trimChars',
+    'trimCharsEnd', 'trimCharsStart', 'truncate', 'union', 'uniqBy', 'uniqWith',
+    'unset', 'unzipWith', 'without', 'wrap', 'xor', 'zip', 'zipObject',
+    'zipObjectDeep'
   ],
   '3': [
     'assignInWith', 'assignWith', 'clamp', 'differenceBy', 'differenceWith',
@@ -165,10 +168,6 @@ exports.methodRearg = {
 exports.methodSpread = {
   'invokeArgs': 2,
   'invokeArgsMap': 2,
-  'over': 0,
-  'overArgs': 1,
-  'overEvery': 0,
-  'overSome': 0,
   'partial': 1,
   'partialRight': 1,
   'without': 1

fp/mapObj.js

@@ -1 +0,0 @@
-module.exports = require('./mapValues');

fp/nth.js

@@ -0,0 +1,5 @@
+var convert = require('./convert'),
+    func = convert('nth', require('../nth'));
+
+func.placeholder = require('./placeholder');
+module.exports = func;

fp/paths.js

@@ -0,0 +1 @@
+module.exports = require('./at');

fp/pluck.js

@@ -0,0 +1 @@
+module.exports = require('./map');

fp/propEq.js

@@ -0,0 +1 @@
+module.exports = require('./matchesProperty');

fp/propOf.js

@@ -1 +0,0 @@
-module.exports = require('./propertyOf');

fp/props.js

@@ -0,0 +1 @@
+module.exports = require('./at');

fp/toString.js

@@ -1,5 +1,5 @@
 var convert = require('./convert'),
-    func = convert('[object Object]', require('../[object Object]'), require('./_falseOptions'));
+    func = convert('toString', require('../toString'), require('./_falseOptions'));
 
 func.placeholder = require('./placeholder');
 module.exports = func;

fp/valueOf.js

@@ -1,5 +1,5 @@
 var convert = require('./convert'),
-    func = convert('[object Object]', require('../[object Object]'), require('./_falseOptions'));
+    func = convert('valueOf', require('../valueOf'), require('./_falseOptions'));
 
 func.placeholder = require('./placeholder');
 module.exports = func;

functions.js

@@ -11,6 +11,7 @@ var baseFunctions = require('./_baseFunctions'),
  * @category Object
  * @param {Object} object The object to inspect.
  * @returns {Array} Returns the new array of property names.
+ * @see _.functionsIn
  * @example
  *
  * function Foo() {

functionsIn.js

@@ -11,6 +11,7 @@ var baseFunctions = require('./_baseFunctions'),
  * @category Object
  * @param {Object} object The object to inspect.
  * @returns {Array} Returns the new array of property names.
+ * @see _.functions
  * @example
  *
  * function Foo() {

get.js

@@ -2,7 +2,7 @@ var baseGet = require('./_baseGet');
 
 /**
  * Gets the value at `path` of `object`. If the resolved value is
- * `undefined` the `defaultValue` is used in its place.
+ * `undefined`, the `defaultValue` is used in its place.
  *
  * @static
  * @memberOf _

groupBy.js

@@ -8,9 +8,10 @@ var hasOwnProperty = objectProto.hasOwnProperty;
 
 /**
  * Creates an object composed of keys generated from the results of running
- * each element of `collection` thru `iteratee`. The corresponding value of
- * each key is an array of elements responsible for generating the key. The
- * iteratee is invoked with one argument: (value).
+ * each element of `collection` thru `iteratee`. The order of grouped values
+ * is determined by the order they occur in `collection`. The corresponding
+ * value of each key is an array of elements responsible for generating the
+ * key. The iteratee is invoked with one argument: (value).
  *
  * @static
  * @memberOf _

gt.js

@@ -1,3 +1,6 @@
+var baseGt = require('./_baseGt'),
+    createRelationalOperation = require('./_createRelationalOperation');
+
 /**
  * Checks if `value` is greater than `other`.
  *
@@ -9,6 +12,7 @@
  * @param {*} other The other value to compare.
  * @returns {boolean} Returns `true` if `value` is greater than `other`,
  *  else `false`.
+ * @see _.lt
  * @example
  *
  * _.gt(3, 1);
@@ -20,8 +24,6 @@
  * _.gt(1, 3);
  * // => false
  */
-function gt(value, other) {
-  return value > other;
-}
+var gt = createRelationalOperation(baseGt);
 
 module.exports = gt;

gte.js

@@ -1,3 +1,5 @@
+var createRelationalOperation = require('./_createRelationalOperation');
+
 /**
  * Checks if `value` is greater than or equal to `other`.
  *
@@ -9,6 +11,7 @@
  * @param {*} other The other value to compare.
  * @returns {boolean} Returns `true` if `value` is greater than or equal to
  *  `other`, else `false`.
+ * @see _.lte
  * @example
  *
  * _.gte(3, 1);
@@ -20,8 +23,8 @@
  * _.gte(1, 3);
  * // => false
  */
-function gte(value, other) {
+var gte = createRelationalOperation(function(value, other) {
   return value >= other;
-}
+});
 
 module.exports = gte;

has.js

@@ -13,16 +13,16 @@ var baseHas = require('./_baseHas'),
  * @returns {boolean} Returns `true` if `path` exists, else `false`.
  * @example
  *
- * var object = { 'a': { 'b': { 'c': 3 } } };
- * var other = _.create({ 'a': _.create({ 'b': _.create({ 'c': 3 }) }) });
+ * var object = { 'a': { 'b': 2 } };
+ * var other = _.create({ 'a': _.create({ 'b': 2 }) });
  *
  * _.has(object, 'a');
  * // => true
  *
- * _.has(object, 'a.b.c');
+ * _.has(object, 'a.b');
  * // => true
  *
- * _.has(object, ['a', 'b', 'c']);
+ * _.has(object, ['a', 'b']);
  * // => true
  *
  * _.has(other, 'a');