Remove copyArray dep from _.flattenDepth.

lodash.js

@@ -2507,7 +2507,7 @@
 
       while (++index < length) {
         var value = array[index];
-        if (isArrayLikeObject(value) &&
+        if (depth > 0 && isArrayLikeObject(value) &&
             (isStrict || isArray(value) || isArguments(value))) {
           if (depth > 1) {
             // Recursively flatten arrays (susceptible to call stack limits).
@@ -4173,7 +4173,7 @@
      */
     function createFlow(fromRight) {
       return rest(function(funcs) {
-        funcs = baseFlatten(funcs);
+        funcs = baseFlatten(funcs, 1);
 
         var length = funcs.length,
             index = length,
@@ -4313,7 +4313,7 @@
      */
     function createOver(arrayFunc) {
       return rest(function(iteratees) {
-        iteratees = arrayMap(baseFlatten(iteratees), getIteratee());
+        iteratees = arrayMap(baseFlatten(iteratees, 1), getIteratee());
         return rest(function(args) {
           var thisArg = this;
           return arrayFunc(iteratees, function(iteratee) {
@@ -5453,7 +5453,7 @@
       if (!isArray(array)) {
         array = array == null ? [] : [Object(array)];
       }
-      values = baseFlatten(values);
+      values = baseFlatten(values, 1);
       return arrayConcat(array, values);
     });
 
@@ -5819,7 +5819,7 @@
      */
     function flatten(array) {
       var length = array ? array.length : 0;
-      return length ? baseFlatten(array) : [];
+      return length ? baseFlatten(array, 1) : [];
     }
 
     /**
@@ -5865,7 +5865,7 @@
         return [];
       }
       depth = depth === undefined ? 1 : toInteger(depth);
-      return depth < 1 ? copyArray(array) : baseFlatten(array, depth);
+      return baseFlatten(array, depth);
     }
 
     /**
@@ -6233,7 +6233,7 @@
      * // => [10, 20]
      */
     var pullAt = rest(function(array, indexes) {
-      indexes = arrayMap(baseFlatten(indexes), String);
+      indexes = arrayMap(baseFlatten(indexes, 1), String);
 
       var result = baseAt(array, indexes);
       basePullAt(array, indexes.sort(compareAscending));
@@ -7184,7 +7184,7 @@
      * // => ['a', 'c']
      */
     var wrapperAt = rest(function(paths) {
-      paths = baseFlatten(paths);
+      paths = baseFlatten(paths, 1);
       var length = paths.length,
           start = length ? paths[0] : 0,
           value = this.__wrapped__,
@@ -7624,7 +7624,7 @@
      * // => [1, 1, 2, 2]
      */
     function flatMap(collection, iteratee) {
-      return baseFlatten(map(collection, iteratee));
+      return baseFlatten(map(collection, iteratee), 1);
     }
 
     /**
@@ -8246,7 +8246,7 @@
       } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {
         iteratees.length = 1;
       }
-      return baseOrderBy(collection, baseFlatten(iteratees), []);
+      return baseOrderBy(collection, baseFlatten(iteratees, 1), []);
     });
 
     /*------------------------------------------------------------------------*/
@@ -8924,7 +8924,7 @@
      * // => [100, 10]
      */
     var overArgs = rest(function(func, transforms) {
-      transforms = arrayMap(baseFlatten(transforms), getIteratee());
+      transforms = arrayMap(baseFlatten(transforms, 1), getIteratee());
 
       var funcsLength = transforms.length;
       return rest(function(args) {
@@ -9038,7 +9038,7 @@
      * // => ['a', 'b', 'c']
      */
     var rearg = rest(function(func, indexes) {
-      return createWrapper(func, REARG_FLAG, undefined, undefined, undefined, baseFlatten(indexes));
+      return createWrapper(func, REARG_FLAG, undefined, undefined, undefined, baseFlatten(indexes, 1));
     });
 
     /**
@@ -10808,7 +10808,7 @@
      * // => ['a', 'c']
      */
     var at = rest(function(object, paths) {
-      return baseAt(object, baseFlatten(paths));
+      return baseAt(object, baseFlatten(paths, 1));
     });
 
     /**
@@ -11544,7 +11544,7 @@
       if (object == null) {
         return {};
       }
-      props = arrayMap(baseFlatten(props), String);
+      props = arrayMap(baseFlatten(props, 1), String);
       return basePick(object, baseDifference(keysIn(object), props));
     });
 
@@ -11591,7 +11591,7 @@
      * // => { 'a': 1, 'c': 3 }
      */
     var pick = rest(function(object, props) {
-      return object == null ? {} : basePick(object, baseFlatten(props));
+      return object == null ? {} : basePick(object, baseFlatten(props, 1));
     });
 
     /**
@@ -13154,7 +13154,7 @@
      * // => logs 'clicked docs' when clicked
      */
     var bindAll = rest(function(object, methodNames) {
-      arrayEach(baseFlatten(methodNames), function(key) {
+      arrayEach(baseFlatten(methodNames, 1), function(key) {
         object[key] = bind(object[key], object);
       });
       return object;