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feat(ngOptions): add $value variable for easier use of trackBy+selectAs #15584

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feat(ngOptions): add $value variable for easier use of trackBy+selectAs #15584

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3b921a3
feat(ngOptions): add $value variable for easier use of trackBy+selectAs
icholy Jan 5, 2017
ee60a38
clarify documentation
icholy Jan 26, 2017
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clarify documentation
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@icholy
icholy committed Jun 20, 2018
commit ee60a3859c615623dec98ebfc92a67c96bc6530b
3 changes: 2 additions & 1 deletion src/ng/directive/ngOptions.js
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Expand Up @@ -108,7 +108,8 @@ var ngOptionsMinErr = minErr('ngOptions');
* expression evaluates to `items[0].subItem.id` (which is undefined). As a result, the model value
* is not matched against any `<option>` and the `<select>` appears as having no selected value.
*
* here is the fixed version of the broken example above.
* The solution is to use `$value` variable which provides uniform access to each `item` and
* `ngModel` value. Here is the fixed version of the broken example above.
*
* ```html
* <select ng-options="item.subItem as item.label for item in items track by $value.id" ng-model="selected"></select>
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