Bump to v4.0.0.

unzip.js

@@ -0,0 +1,41 @@
+define(['./internal/arrayFilter', './internal/arrayMap', './internal/baseProperty', './internal/baseTimes', './isArrayLikeObject'], function(arrayFilter, arrayMap, baseProperty, baseTimes, isArrayLikeObject) {
+
+  /* Built-in method references for those with the same name as other `lodash` methods. */
+  var nativeMax = Math.max;
+
+  /**
+   * This method is like `_.zip` except that it accepts an array of grouped
+   * elements and creates an array regrouping the elements to their pre-zip
+   * configuration.
+   *
+   * @static
+   * @memberOf _
+   * @category Array
+   * @param {Array} array The array of grouped elements to process.
+   * @returns {Array} Returns the new array of regrouped elements.
+   * @example
+   *
+   * var zipped = _.zip(['fred', 'barney'], [30, 40], [true, false]);
+   * // => [['fred', 30, true], ['barney', 40, false]]
+   *
+   * _.unzip(zipped);
+   * // => [['fred', 'barney'], [30, 40], [true, false]]
+   */
+  function unzip(array) {
+    if (!(array && array.length)) {
+      return [];
+    }
+    var length = 0;
+    array = arrayFilter(array, function(group) {
+      if (isArrayLikeObject(group)) {
+        length = nativeMax(group.length, length);
+        return true;
+      }
+    });
+    return baseTimes(length, function(index) {
+      return arrayMap(array, baseProperty(index));
+    });
+  }
+
+  return unzip;
+});