vm不一定是一个VM对象也不一定有_watchers

7 years ago · 13eda7a08c
1 changed files with 1 additions and 1 deletions
--- a/dist/fix/fix.js
+++ b/dist/fix/fix.js
@ -48,7 +48,7 @@ function _classCallCheck(instance, Constructor) { if (!(instance instanceof Cons
    }

    function remove(arr, item) {
-        if (arr.length) {
+        if (arr && arr.length) {
            var _index = arr.indexOf(item);
            if (_index > -1) {
                return arr.splice(_index, 1);