Bump to v3.0.0.

lodash.callback/index.js

@@ -0,0 +1,54 @@
+/**
+ * lodash 3.0.0 (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 1.7.0 <http://underscorejs.org/LICENSE>
+ * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+ * Available under MIT license <https://lodash.com/license>
+ */
+var baseCallback = require('lodash._basecallback'),
+    isIterateeCall = require('lodash._isiterateecall');
+
+/**
+ * Creates a function bound to an optional `thisArg`. If `func` is a property
+ * name the created callback returns the property value for a given element.
+ * If `func` is an object the created callback returns `true` for elements
+ * that contain the equivalent object properties, otherwise it returns `false`.
+ *
+ * @static
+ * @memberOf _
+ * @alias iteratee
+ * @category Utility
+ * @param {*} [func=_.identity] The value to convert to a callback.
+ * @param {*} [thisArg] The `this` binding of `func`.
+ * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
+ * @returns {Function} Returns the callback.
+ * @example
+ *
+ * var users = [
+ *   { 'user': 'barney', 'age': 36 },
+ *   { 'user': 'fred',   'age': 40 }
+ * ];
+ *
+ * // wrap to create custom callback shorthands
+ * _.callback = _.wrap(_.callback, function(callback, func, thisArg) {
+ *   var match = /^(.+?)__([gl]t)(.+)$/.exec(func);
+ *   if (!match) {
+ *     return callback(func, thisArg);
+ *   }
+ *   return function(object) {
+ *     return match[2] == 'gt' ? object[match[1]] > match[3] : object[match[1]] < match[3];
+ *   };
+ * });
+ *
+ * _.filter(users, 'age__gt36');
+ * // => [{ 'user': 'fred', 'age': 40 }]
+ */
+function callback(func, thisArg, guard) {
+  if (guard && isIterateeCall(func, thisArg, guard)) {
+    thisArg = null;
+  }
+  return baseCallback(func, thisArg);
+}
+
+module.exports = callback;