Bump to v4.0.0.

rearg.js

@@ -0,0 +1,34 @@
+import baseFlatten from './internal/baseFlatten';
+import createWrapper from './internal/createWrapper';
+import rest from './rest';
+
+/** Used to compose bitmasks for wrapper metadata. */
+var REARG_FLAG = 256;
+
+/**
+ * Creates a function that invokes `func` with arguments arranged according
+ * to the specified indexes where the argument value at the first index is
+ * provided as the first argument, the argument value at the second index is
+ * provided as the second argument, and so on.
+ *
+ * @static
+ * @memberOf _
+ * @category Function
+ * @param {Function} func The function to rearrange arguments for.
+ * @param {...(number|number[])} indexes The arranged argument indexes,
+ *  specified individually or in arrays.
+ * @returns {Function} Returns the new function.
+ * @example
+ *
+ * var rearged = _.rearg(function(a, b, c) {
+ *   return [a, b, c];
+ * }, 2, 0, 1);
+ *
+ * rearged('b', 'c', 'a')
+ * // => ['a', 'b', 'c']
+ */
+var rearg = rest(function(func, indexes) {
+  return createWrapper(func, REARG_FLAG, undefined, undefined, undefined, baseFlatten(indexes));
+});
+
+export default rearg;