Bump to v3.0.0.

array/unzip.js

@@ -0,0 +1,37 @@
+var arrayMap = require('../internal/arrayMap'),
+    arrayMax = require('../internal/arrayMax'),
+    baseProperty = require('../internal/baseProperty');
+
+/** Used to the length of n-tuples for `_.unzip`. */
+var getLength = baseProperty('length');
+
+/**
+ * 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) {
+  var index = -1,
+      length = (array && array.length && arrayMax(arrayMap(array, getLength))) >>> 0,
+      result = Array(length);
+
+  while (++index < length) {
+    result[index] = arrayMap(array, baseProperty(index));
+  }
+  return result;
+}
+
+module.exports = unzip;