Comment out unused restParam implementation

1 files changed, 9 insertions, 8 deletions

diff --git a/lib/async.js b/lib/async.js
index 263f27f..5da3622 100644
--- a/lib/async.js
+++ b/lib/async.js
@@ -139,13 +139,13 @@
 
     // Similar to ES6's rest param (http://ariya.ofilabs.com/2013/03/es6-and-rest-parameter.html)
     // This accumulates the arguments passed into an array, after a given index.
+    // From underscore.js (https://github.com/jashkenas/underscore/pull/2140).
     function _restParam(func, startIndex) {
         startIndex = startIndex == null ? func.length - 1 : +startIndex;
         return function() {
             var length = Math.max(arguments.length - startIndex, 0);
             var rest = Array(length);
-            var index;
-            for (index = 0; index < length; index++) {
+            for (var index = 0; index < length; index++) {
                 rest[index] = arguments[index + startIndex];
             }
             switch (startIndex) {
@@ -153,12 +153,13 @@
                 case 1: return func.call(this, arguments[0], rest);
                 case 2: return func.call(this, arguments[0], arguments[1], rest);
             }
-            var args = Array(startIndex + 1);
-            for (index = 0; index < startIndex; index++) {
-                args[index] = arguments[index];
-            }
-            args[startIndex] = rest;
-            return func.apply(this, args);
+            // Currently unused but handle cases outside of the switch statement:
+            // var args = Array(startIndex + 1);
+            // for (index = 0; index < startIndex; index++) {
+            //     args[index] = arguments[index];
+            // }
+            // args[startIndex] = rest;
+            // return func.apply(this, args);
         };
     }