ng-repeat does not work when array (or string) has non-unique values

All we need is an easy explanation of the problem, so here it is.

I have this line of code in my AngularJS template:

        <span ng-repeat="letter in word">{{letter}}&nbsp;</span>

‘word’ is a string.
It works fine unless word contains the same letter twice. For example for the word ‘boy’ it works fine and renders the string “b o y “, but for the words ‘ball’ or ‘elephant’ nothing is rendered. The same problem occurs when iterating over an array of one letter strings.

Any ideas?

How to solve :

I know you bored from this bug, So we are here to help you! Take a deep breath and look at the explanation of your problem. We have many solutions to this problem, But we recommend you to use the first method because it is tested & true method that will 100% work for you.

Method 1

Change your repeater to use this:

<span ng-repeat="letter in word track by $index">{{letter}}&nbsp;</span>

Docs: http://docs.angularjs.org/error/ngRepeat/dupes

Note: Use and implement method 1 because this method fully tested our system.
Thank you 🙂

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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