Bump to v3.0.0.

function/after.js

@@ -0,0 +1,51 @@
+import isFunction from '../lang/isFunction';
+import root from '../internal/root';
+
+/** Used as the `TypeError` message for "Functions" methods. */
+var FUNC_ERROR_TEXT = 'Expected a function';
+
+/* Native method references for those with the same name as other `lodash` methods. */
+var nativeIsFinite = root.isFinite;
+
+/**
+ * The opposite of `_.before`; this method creates a function that invokes
+ * `func` once it is called `n` or more times.
+ *
+ * @static
+ * @memberOf _
+ * @category Function
+ * @param {number} n The number of calls before `func` is invoked.
+ * @param {Function} func The function to restrict.
+ * @returns {Function} Returns the new restricted function.
+ * @example
+ *
+ * var saves = ['profile', 'settings'];
+ *
+ * var done = _.after(saves.length, function() {
+ *   console.log('done saving!');
+ * });
+ *
+ * _.forEach(saves, function(type) {
+ *   asyncSave({ 'type': type, 'complete': done });
+ * });
+ * // => logs 'done saving!' after the two async saves have completed
+ */
+function after(n, func) {
+  if (!isFunction(func)) {
+    if (isFunction(n)) {
+      var temp = n;
+      n = func;
+      func = temp;
+    } else {
+      throw new TypeError(FUNC_ERROR_TEXT);
+    }
+  }
+  n = nativeIsFinite(n = +n) ? n : 0;
+  return function() {
+    if (--n < 1) {
+      return func.apply(this, arguments);
+    }
+  };
+}
+
+export default after;