use reverse order in _.indexOf

sudongyan · Sep 3, 2015 · 5b413fc · 5b413fc
1 parent 1fa16a0
commit 5b413fc
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/util/lang.js b/src/util/lang.js
@@ -264,7 +264,8 @@ exports.debounce = function (func, wait) {
  */
 
 exports.indexOf = function (arr, obj) {
- for (var i = 0, l = arr.length; i < l; i++) {
+ var i = arr.length
+ while (i--) {
  if (arr[i] === obj) return i
  }
  return -1