Bump to v3.7.4.

lodash.set/index.js

@@ -1,5 +1,5 @@
 /**
- * lodash 3.7.3 (Custom Build) <https://lodash.com/>
+ * lodash 3.7.4 (Custom Build) <https://lodash.com/>
  * Build: `lodash modern modularize exports="npm" -o ./`
  * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
  * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
@@ -13,8 +13,11 @@ var toPath = require('lodash._topath'),
 var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\n\\]|\\.)*?\1)\]/,
     reIsPlainProp = /^\w*$/;
 
+/** Used to detect unsigned integer values. */
+var reIsUint = /^\d+$/;
+
 /**
- * Used as the [maximum length](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-number.max_safe_integer)
+ * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)
  * of an array-like value.
  */
 var MAX_SAFE_INTEGER = 9007199254740991;
@@ -28,7 +31,7 @@ var MAX_SAFE_INTEGER = 9007199254740991;
  * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
  */
 function isIndex(value, length) {
-  value = typeof value == 'number' ? value : parseFloat(value);
+  value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1;
   length = length == null ? MAX_SAFE_INTEGER : length;
   return value > -1 && value % 1 == 0 && value < length;
 }
@@ -93,7 +96,7 @@ function isObject(value) {
 
 /**
  * Sets the property value of `path` on `object`. If a portion of `path`
- * does not exist it is created.
+ * does not exist it's created.
  *
  * @static
  * @memberOf _