Use Array.isArray.

_arrayLikeKeys.js

@@ -1,6 +1,5 @@
 import baseTimes from './_baseTimes.js';
 import isArguments from './isArguments.js';
-import isArray from './isArray.js';
 import isBuffer from './isBuffer.js';
 import isIndex from './_isIndex.js';
 import isTypedArray from './isTypedArray.js';
@@ -17,7 +16,7 @@ const hasOwnProperty = Object.prototype.hasOwnProperty;
  * @returns {Array} Returns the array of property names.
  */
 function arrayLikeKeys(value, inherited) {
-  const isArr = isArray(value);
+  const isArr = Array.isArray(value);
   const isArg = !isArr && isArguments(value);
   const isBuff = !isArr && !isArg && isBuffer(value);
   const isType = !isArr && !isArg && !isBuff && isTypedArray(value);

_baseClone.js

@@ -13,7 +13,6 @@ import getTag from './_getTag.js';
 import initCloneArray from './_initCloneArray.js';
 import initCloneByTag from './_initCloneByTag.js';
 import initCloneObject from './_initCloneObject.js';
-import isArray from './isArray.js';
 import isBuffer from './isBuffer.js';
 import isObject from './isObject.js';
 import keys from './keys.js';
@@ -99,7 +98,7 @@ function baseClone(value, bitmask, customizer, key, object, stack) {
   if (!isObject(value)) {
     return value;
   }
-  const isArr = isArray(value);
+  const isArr = Array.isArray(value);
   if (isArr) {
     result = initCloneArray(value);
     if (!isDeep) {

_baseGetAllKeys.js

@@ -1,5 +1,4 @@
 import arrayPush from './_arrayPush.js';
-import isArray from './isArray.js';
 
 /**
  * The base implementation of `getAllKeys` and `getAllKeysIn` which uses
@@ -14,7 +13,7 @@ import isArray from './isArray.js';
  */
 function baseGetAllKeys(object, keysFunc, symbolsFunc) {
   const result = keysFunc(object);
-  return isArray(object) ? result : arrayPush(result, symbolsFunc(object));
+  return Array.isArray(object) ? result : arrayPush(result, symbolsFunc(object));
 }
 
 export default baseGetAllKeys;

_baseIsEqualDeep.js

@@ -3,7 +3,6 @@ import equalArrays from './_equalArrays.js';
 import equalByTag from './_equalByTag.js';
 import equalObjects from './_equalObjects.js';
 import getTag from './_getTag.js';
-import isArray from './isArray.js';
 import isBuffer from './isBuffer.js';
 import isTypedArray from './isTypedArray.js';
 
@@ -33,8 +32,8 @@ const hasOwnProperty = Object.prototype.hasOwnProperty;
  * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
  */
 function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {
-  let objIsArr = isArray(object);
+  let objIsArr = Array.isArray(object);
-  const othIsArr = isArray(other);
+  const othIsArr = Array.isArray(other);
   let objTag = objIsArr ? arrayTag : getTag(object);
   let othTag = othIsArr ? arrayTag : getTag(other);
 

_baseMergeDeep.js

@@ -4,7 +4,6 @@ import cloneTypedArray from './_cloneTypedArray.js';
 import copyArray from './_copyArray.js';
 import initCloneObject from './_initCloneObject.js';
 import isArguments from './isArguments.js';
-import isArray from './isArray.js';
 import isArrayLikeObject from './isArrayLikeObject.js';
 import isBuffer from './isBuffer.js';
 import isFunction from './isFunction.js';
@@ -44,13 +43,13 @@ function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, sta
   let isCommon = newValue === undefined;
 
   if (isCommon) {
-    const isArr = isArray(srcValue);
+    const isArr = Array.isArray(srcValue);
     const isBuff = !isArr && isBuffer(srcValue);
     const isTyped = !isArr && !isBuff && isTypedArray(srcValue);
 
     newValue = srcValue;
     if (isArr || isBuff || isTyped) {
-      if (isArray(objValue)) {
+      if (Array.isArray(objValue)) {
         newValue = objValue;
       }
       else if (isArrayLikeObject(objValue)) {

_baseToString.js

@@ -1,6 +1,5 @@
 import Symbol from './_Symbol.js';
 import arrayMap from './_arrayMap.js';
-import isArray from './isArray.js';
 import isSymbol from './isSymbol.js';
 
 /** Used as references for various `Number` constants. */
@@ -23,7 +22,7 @@ function baseToString(value) {
   if (typeof value == 'string') {
     return value;
   }
-  if (isArray(value)) {
+  if (Array.isArray(value)) {
     // Recursively convert values (susceptible to call stack limits).
     return `${ arrayMap(value, baseToString) }`;
   }

_castPath.js

@@ -1,4 +1,3 @@
-import isArray from './isArray.js';
 import isKey from './_isKey.js';
 import stringToPath from './_stringToPath.js';
 import toString from './toString.js';
@@ -12,7 +11,7 @@ import toString from './toString.js';
  * @returns {Array} Returns the cast property path array.
  */
 function castPath(value, object) {
-  if (isArray(value)) {
+  if (Array.isArray(value)) {
     return value;
   }
   return isKey(value, object) ? [value] : stringToPath(toString(value));

_createAggregator.js

@@ -1,6 +1,5 @@
 import arrayAggregator from './_arrayAggregator.js';
 import baseAggregator from './_baseAggregator.js';
-import isArray from './isArray.js';
 
 /**
  * Creates a function like `groupBy`.
@@ -12,7 +11,7 @@ import isArray from './isArray.js';
  */
 function createAggregator(setter, initializer) {
   return (collection, iteratee) => {
-    const func = isArray(collection) ? arrayAggregator : baseAggregator;
+    const func = Array.isArray(collection) ? arrayAggregator : baseAggregator;
     const accumulator = initializer ? initializer() : {};
     return func(collection, setter, iteratee, accumulator);
   };

_hasPath.js

@@ -1,6 +1,5 @@
 import castPath from './_castPath.js';
 import isArguments from './isArguments.js';
-import isArray from './isArray.js';
 import isIndex from './_isIndex.js';
 import isLength from './isLength.js';
 import toKey from './_toKey.js';
@@ -34,7 +33,7 @@ function hasPath(object, path, hasFunc) {
   }
   length = object == null ? 0 : object.length;
   return !!length && isLength(length) && isIndex(key, length) &&
-    (isArray(object) || isArguments(object));
+    (Array.isArray(object) || isArguments(object));
 }
 
 export default hasPath;

_isFlattenable.js

@@ -1,6 +1,5 @@
 import Symbol from './_Symbol.js';
 import isArguments from './isArguments.js';
-import isArray from './isArray.js';
 
 /** Built-in value references. */
 const spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined;
@@ -13,7 +12,7 @@ const spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined;
  * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.
  */
 function isFlattenable(value) {
-  return isArray(value) || isArguments(value) ||
+  return Array.isArray(value) || isArguments(value) ||
     !!(spreadableSymbol && value && value[spreadableSymbol]);
 }
 

_isKey.js

@@ -1,4 +1,3 @@
-import isArray from './isArray.js';
 import isSymbol from './isSymbol.js';
 
 /** Used to match property names within property paths. */
@@ -14,7 +13,7 @@ const reIsPlainProp = /^\w*$/;
  * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
  */
 function isKey(value, object) {
-  if (isArray(value)) {
+  if (Array.isArray(value)) {
     return false;
   }
   const type = typeof value;

castArray.js

@@ -1,4 +1,3 @@
-import isArray from './isArray.js';
 
 /**
  * Casts `value` as an array if it's not one.
@@ -37,7 +36,7 @@ function castArray(...args) {
     return [];
   }
   const value = args[0];
-  return isArray(value) ? value : [value];
+  return Array.isArray(value) ? value : [value];
 }
 
 export default castArray;

concat.js

@@ -1,7 +1,6 @@
 import arrayPush from './_arrayPush.js';
 import baseFlatten from './_baseFlatten.js';
 import copyArray from './_copyArray.js';
-import isArray from './isArray.js';
 
 /**
  * Creates a new array concatenating `array` with any additional arrays
@@ -25,7 +24,7 @@ import isArray from './isArray.js';
  * // => [1]
  */
 function concat(array, ...values) {
-  return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));
+  return arrayPush(Array.isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));
 }
 
 export default concat;

every.js

@@ -1,6 +1,5 @@
 import arrayEvery from './_arrayEvery.js';
 import baseEvery from './_baseEvery.js';
-import isArray from './isArray.js';
 import isIterateeCall from './_isIterateeCall.js';
 
 /**
@@ -27,7 +26,7 @@ import isIterateeCall from './_isIterateeCall.js';
  * // => false
  */
 function every(collection, predicate, guard) {
-  const func = isArray(collection) ? arrayEvery : baseEvery;
+  const func = Array.isArray(collection) ? arrayEvery : baseEvery;
   if (guard && isIterateeCall(collection, predicate, guard)) {
     predicate = undefined;
   }

filter.js

@@ -1,6 +1,5 @@
 import arrayFilter from './_arrayFilter.js';
 import baseFilter from './_baseFilter.js';
-import isArray from './isArray.js';
 
 /**
  * Iterates over elements of `collection`, returning an array of all elements
@@ -27,7 +26,7 @@ import isArray from './isArray.js';
  * // => objects for ['fred']
  */
 function filter(collection, predicate) {
-  const func = isArray(collection) ? arrayFilter : baseFilter;
+  const func = Array.isArray(collection) ? arrayFilter : baseFilter;
   return func(collection, predicate);
 }
 

forEach.js

@@ -1,6 +1,5 @@
 import arrayEach from './_arrayEach.js';
 import baseEach from './_baseEach.js';;
-import isArray from './isArray.js';
 
 /**
  * Iterates over elements of `collection` and invokes `iteratee` for each element.
@@ -32,7 +31,7 @@ import isArray from './isArray.js';
  * // => Logs 'a' then 'b' (iteration order is not guaranteed).
  */
 function forEach(collection, iteratee) {
-  const func = isArray(collection) ? arrayEach : baseEach;
+  const func = Array.isArray(collection) ? arrayEach : baseEach;
   return func(collection, iteratee);
 }
 

forEachRight.js

@@ -1,6 +1,5 @@
 import arrayEachRight from './_arrayEachRight.js';
 import baseEachRight from './_baseEachRight.js';
-import isArray from './isArray.js';
 
 /**
  * This method is like `forEach` except that it iterates over elements of
@@ -22,7 +21,7 @@ import isArray from './isArray.js';
  * // => Logs `2` then `1`.
  */
 function forEachRight(collection, iteratee) {
-  const func = isArray(collection) ? arrayEachRight : baseEachRight;
+  const func = Array.isArray(collection) ? arrayEachRight : baseEachRight;
   return func(collection, iteratee);
 }
 

isEmpty.js

@@ -1,7 +1,6 @@
 import baseKeys from './_baseKeys.js';
 import getTag from './_getTag.js';
 import isArguments from './isArguments.js';
-import isArray from './isArray.js';
 import isArrayLike from './isArrayLike.js';
 import isBuffer from './isBuffer.js';
 import isPrototype from './_isPrototype.js';
@@ -51,7 +50,7 @@ function isEmpty(value) {
     return true;
   }
   if (isArrayLike(value) &&
-      (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||
+      (Array.isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||
         isBuffer(value) || isTypedArray(value) || isArguments(value))) {
     return !value.length;
   }

isString.js

@@ -1,5 +1,4 @@
 import baseGetTag from './_baseGetTag.js';
-import isArray from './isArray.js';
 import isObjectLike from './isObjectLike.js';
 
 /** `Object#toString` result references. */
@@ -23,7 +22,7 @@ const stringTag = '[object String]';
  */
 function isString(value) {
   return typeof value == 'string' ||
-    (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);
+    (!Array.isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);
 }
 
 export default isString;

map.js

@@ -1,6 +1,5 @@
 import arrayMap from './_arrayMap.js';
 import baseMap from './_baseMap.js';
-import isArray from './isArray.js';
 
 /**
  * Creates an array of values by running each element in `collection` thru
@@ -35,7 +34,7 @@ import isArray from './isArray.js';
  * // => [16, 64] (iteration order is not guaranteed)
  */
 function map(collection, iteratee) {
-  const func = isArray(collection) ? arrayMap : baseMap;
+  const func = Array.isArray(collection) ? arrayMap : baseMap;
   return func(collection, iteratee);
 }
 

mergeWith.js

@@ -20,7 +20,7 @@ import createAssigner from './_createAssigner.js';
  * @example
  *
  * function customizer(objValue, srcValue) {
- *   if (isArray(objValue)) {
+ *   if (Array.isArray(objValue)) {
  *     return objValue.concat(srcValue);
  *   }
  * }

orderBy.js

@@ -1,5 +1,4 @@
 import baseOrderBy from './_baseOrderBy.js';
-import isArray from './isArray.js';
 
 /**
  * This method is like `sortBy` except that it allows specifying the sort
@@ -33,11 +32,11 @@ function orderBy(collection, iteratees, orders, guard) {
   if (collection == null) {
     return [];
   }
-  if (!isArray(iteratees)) {
+  if (!Array.isArray(iteratees)) {
     iteratees = iteratees == null ? [] : [iteratees];
   }
   orders = guard ? undefined : orders;
-  if (!isArray(orders)) {
+  if (!Array.isArray(orders)) {
     orders = orders == null ? [] : [orders];
   }
   return baseOrderBy(collection, iteratees, orders);

reduce.js

@@ -1,7 +1,6 @@
 import arrayReduce from './_arrayReduce.js';
 import baseEach from './_baseEach.js';
 import baseReduce from './_baseReduce.js';
-import isArray from './isArray.js';
 
 /**
  * Reduces `collection` to a value which is the accumulated result of running
@@ -40,7 +39,7 @@ import isArray from './isArray.js';
  * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)
  */
 function reduce(collection, iteratee, accumulator) {
-  const func = isArray(collection) ? arrayReduce : baseReduce;
+  const func = Array.isArray(collection) ? arrayReduce : baseReduce;
   const initAccum = arguments.length < 3;
   return func(collection, iteratee, accumulator, initAccum, baseEach);
 }

reduceRight.js

@@ -1,7 +1,6 @@
 import arrayReduceRight from './_arrayReduceRight.js';
 import baseEachRight from './_baseEachRight.js';
 import baseReduce from './_baseReduce.js';
-import isArray from './isArray.js';
 
 /**
  * This method is like `reduce` except that it iterates over elements of
@@ -25,7 +24,7 @@ import isArray from './isArray.js';
  * // => [4, 5, 2, 3, 0, 1]
  */
 function reduceRight(collection, iteratee, accumulator) {
-  const func = isArray(collection) ? arrayReduceRight : baseReduce;
+  const func = Array.isArray(collection) ? arrayReduceRight : baseReduce;
   const initAccum = arguments.length < 3;
   return func(collection, iteratee, accumulator, initAccum, baseEachRight);
 }

reject.js

@@ -1,6 +1,5 @@
 import arrayFilter from './_arrayFilter.js';
 import baseFilter from './_baseFilter.js';
-import isArray from './isArray.js';
 import negate from './negate.js';
 
 /**
@@ -25,7 +24,7 @@ import negate from './negate.js';
  * // => objects for ['fred']
  */
 function reject(collection, predicate) {
-  const func = isArray(collection) ? arrayFilter : baseFilter;
+  const func = Array.isArray(collection) ? arrayFilter : baseFilter;
   return func(collection, negate(predicate));
 }
 

sample.js

@@ -1,6 +1,5 @@
 import arraySample from './_arraySample.js';
 import baseSample from './_baseSample.js';
-import isArray from './isArray.js';
 
 /**
  * Gets a random element from `collection`.
@@ -16,7 +15,7 @@ import isArray from './isArray.js';
  * // => 2
  */
 function sample(collection) {
-  const func = isArray(collection) ? arraySample : baseSample;
+  const func = Array.isArray(collection) ? arraySample : baseSample;
   return func(collection);
 }
 

sampleSize.js

@@ -1,6 +1,5 @@
 import arraySampleSize from './_arraySampleSize.js';
 import baseSampleSize from './_baseSampleSize.js';
-import isArray from './isArray.js';
 import isIterateeCall from './_isIterateeCall.js';
 import toInteger from './toInteger.js';
 
@@ -29,7 +28,7 @@ function sampleSize(collection, n, guard) {
   } else {
     n = toInteger(n);
   }
-  const func = isArray(collection) ? arraySampleSize : baseSampleSize;
+  const func = Array.isArray(collection) ? arraySampleSize : baseSampleSize;
   return func(collection, n);
 }
 

shuffle.js

@@ -1,6 +1,5 @@
 import arrayShuffle from './_arrayShuffle.js';
 import baseShuffle from './_baseShuffle.js';
-import isArray from './isArray.js';
 
 /**
  * Creates an array of shuffled values, using a version of the
@@ -17,7 +16,7 @@ import isArray from './isArray.js';
  * // => [4, 1, 3, 2]
  */
 function shuffle(collection) {
-  const func = isArray(collection) ? arrayShuffle : baseShuffle;
+  const func = Array.isArray(collection) ? arrayShuffle : baseShuffle;
   return func(collection);
 }
 

some.js

@@ -1,6 +1,5 @@
 import arraySome from './_arraySome.js';
 import baseSome from './_baseSome.js';
-import isArray from './isArray.js';
 import isIterateeCall from './_isIterateeCall.js';
 
 /**
@@ -22,7 +21,7 @@ import isIterateeCall from './_isIterateeCall.js';
  * // => true
  */
 function some(collection, predicate, guard) {
-  const func = isArray(collection) ? arraySome : baseSome;
+  const func = Array.isArray(collection) ? arraySome : baseSome;
   if (guard && isIterateeCall(collection, predicate, guard)) {
     predicate = undefined;
   }

toPath.js

@@ -1,6 +1,5 @@
 import arrayMap from './_arrayMap.js';
 import copyArray from './_copyArray.js';
-import isArray from './isArray.js';
 import isSymbol from './isSymbol.js';
 import stringToPath from './_stringToPath.js';
 import toKey from './_toKey.js';
@@ -23,7 +22,7 @@ import toString from './toString.js';
  * // => ['a', '0', 'b', 'c']
  */
 function toPath(value) {
-  if (isArray(value)) {
+  if (Array.isArray(value)) {
     return arrayMap(value, toKey);
   }
   return isSymbol(value) ? [value] : copyArray(stringToPath(toString(value)));

transform.js

@@ -2,7 +2,6 @@ import arrayEach from './_arrayEach.js';
 import baseCreate from './_baseCreate.js';
 import baseForOwn from './_baseForOwn.js';
 import getPrototype from './_getPrototype.js';
-import isArray from './isArray.js';
 import isBuffer from './isBuffer.js';
 import isFunction from './isFunction.js';
 import isObject from './isObject.js';
@@ -38,7 +37,7 @@ import isTypedArray from './isTypedArray.js';
  * // => { '1': ['a', 'c'], '2': ['b'] }
  */
 function transform(object, iteratee, accumulator) {
-  const isArr = isArray(object);
+  const isArr = Array.isArray(object);
   const isArrLike = isArr || isBuffer(object) || isTypedArray(object);
 
   if (accumulator == null) {