Bump to v4.0.0.

iteratee.js

@@ -0,0 +1,41 @@
+import baseIteratee from './internal/baseIteratee';
+import isArray from './isArray';
+import isObjectLike from './isObjectLike';
+import matches from './matches';
+
+/**
+ * Creates a function that invokes `func` with the arguments of the created
+ * function. 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 _
+ * @category Util
+ * @param {*} [func=_.identity] The value to convert to a callback.
+ * @returns {Function} Returns the callback.
+ * @example
+ *
+ * var users = [
+ *   { 'user': 'barney', 'age': 36 },
+ *   { 'user': 'fred',   'age': 40 }
+ * ];
+ *
+ * // create custom iteratee shorthands
+ * _.iteratee = _.wrap(_.iteratee, function(callback, func) {
+ *   var p = /^(\S+)\s*([<>])\s*(\S+)$/.exec(func);
+ *   return !p ? callback(func) : function(object) {
+ *     return (p[2] == '>' ? object[p[1]] > p[3] : object[p[1]] < p[3]);
+ *   };
+ * });
+ *
+ * _.filter(users, 'age > 36');
+ * // => [{ 'user': 'fred', 'age': 40 }]
+ */
+function iteratee(func) {
+  return (isObjectLike(func) && !isArray(func))
+    ? matches(func)
+    : baseIteratee(func);
+}
+
+export default iteratee;