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| -rw-r--r-- | docs/content/guide/filter.ngdoc | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/docs/content/guide/filter.ngdoc b/docs/content/guide/filter.ngdoc index 8eedf14c..9ef8bcc0 100644 --- a/docs/content/guide/filter.ngdoc +++ b/docs/content/guide/filter.ngdoc @@ -103,6 +103,7 @@ text upper-case. angular.module('MyReverseModule', []). filter('reverse', function() { return function(input, uppercase) { + input = input || ''; var out = ""; for (var i = 0; i < input.length; i++) { out = input.charAt(i) + out; |