added an _.zip()

test/arrays.js

@@ -37,6 +37,12 @@ $(document).ready(function() {
     equals(_.intersect(stooges, leaders).join(''), 'moe', 'can take the set intersection of two arrays');
   });
   
+  test('arrays: zip', function() {
+    var names = ['moe', 'larry', 'curly'], ages = [30, 40, 50], leaders = [true];
+    var stooges = _.zip(names, ages, leaders);
+    equals(_.toString(stooges), 'moe,30,true,larry,40,,curly,50,', 'zipped together arrays of different lengths');
+  });
+  
   test("arrays: indexOf", function() {
     var numbers = [1, 2, 3];
     numbers.indexOf = null;