blocks|key|4917889|text|AngularUI提供了您所需要的“唯一”过滤器(src+code)。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4917890|示例：|4917891|ng-options="color+in+colors+%7C+unique:'name'"|code-block|syntax|javascript|4917892|entityMap|0|LINK|mutability|MUTABLE|url|http://angular-ui.github.com/|1|https://github.com/angular-ui/angular-ui/blob/master/modules/filters/unique/unique.js^0|0|9|0|P|8|1|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]|$A|Y|B|Z|1|10]]|C|$]]|$1|D|3|E|5|6|7|11|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|12|8|@]|9|@]|C|$I|J]]|$1|K|3|-4|5|6|7|13|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]|S|$5|N|O|P|C|$Q|T]]]]

<a href="http://angular-ui.github.com/" rel="noreferrer">AngularUI</a> has exactly what you need, the ´unique´ filter (<a href="https://github.com/angular-ui/angular-ui/blob/master/modules/filters/unique/unique.js" rel="noreferrer">src code</a>).

Example:

<pre><code>ng-options="color in colors | unique:'name'"
</code></pre>

blocks|key|547812|text|您可以使用angular.filter模块的uniq/uniq过滤器。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|547813|使用：+collection+%7C+unique:+'property'或collection+%7C+unique:+'nested.property'|style|BOLD|CODE|547814|JS:|547815|$scope.colors+=+[
+{name:'black',+shade:'dark'},
+{name:'white',+shade:'light'},
+{name:'red',+shade:'dark'},
+{name:'red',+shade:'dark'},
+{name:'yellow',+shade:'light'}
];|code-block|syntax|javascript|547816|HTML：|547817|<select+ng-options="color+in+colors+%7C+unique:'name'"></select>|547818|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/a8m/angular-filter^0|5|E|0|0|0|3|4|V|10|12|0|0|3|0|0|0|0^^$0|@$1|2|3|4|5|6|7|11|8|@]|9|@$A|12|B|13|1|14]]|C|$]]|$1|D|3|E|5|6|7|15|8|@$A|16|B|17|F|G]|$A|18|B|19|F|H]|$A|1A|B|1B|F|H]]|9|@]|C|$]]|$1|I|3|J|5|6|7|1C|8|@$A|1D|B|1E|F|G]]|9|@]|C|$]]|$1|K|3|L|5|M|7|1F|8|@]|9|@]|C|$N|O]]|$1|P|3|Q|5|6|7|1G|8|@]|9|@]|C|$]]|$1|R|3|S|5|M|7|1H|8|@]|9|@]|C|$N|O]]|$1|T|3|-4|5|6|7|1I|8|@]|9|@]|C|$]]]|U|$V|$5|W|X|Y|C|$Z|10]]]]

You can use uniq/unique filter of <a href="https://github.com/a8m/angular-filter" rel="noreferrer">angular.filter</a> module. 
Usage: <code>collection | unique: 'property'</code> or <code>collection | unique: 'nested.property'</code>

JS:

<pre><code>$scope.colors = [
 {name:'black', shade:'dark'},
 {name:'white', shade:'light'},
 {name:'red', shade:'dark'},
 {name:'red', shade:'dark'},
 {name:'yellow', shade:'light'}
];
</code></pre>

HTML:

<pre><code>&lt;select ng-options="color in colors | unique:'name'"&gt;&lt;/select&gt;
</code></pre>

blocks|key|1568610|text|我没有发现上面的回复是有效的。我做了以下工作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1568611|我的ng-options是这样实现的：|offset|length|style|CODE|1568612|<select+ng-model="test"+ng-options="cand.candidate+for+cand+in+candidates++%7C+unique:'candidate'">
+++<option+value="">Select+Candidate</option>
</select>|code-block|syntax|javascript|1568613|将你的模块添加到你的应用中：|1568614|var+app+=+angular.module('phonecatApp',+['ui.unique']);|1568615|使用Bower只安装唯一的Ui+Utils。Link+to+instructions.|1568616|entityMap|0|LINK|mutability|MUTABLE|url|http://angular-ui.github.io/ui-utils/^0|0|2|A|0|0|0|0|M|L|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|11|8|@$D|12|E|13|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|14|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|15|8|@]|9|@]|A|$]]|$1|O|3|P|5|J|7|16|8|@]|9|@]|A|$K|L]]|$1|Q|3|R|5|6|7|17|8|@]|9|@$D|18|E|19|1|1A]]|A|$]]|$1|S|3|-4|5|6|7|1B|8|@]|9|@]|A|$]]]|T|$U|$5|V|W|X|A|$Y|Z]]]]

I didn't find that the above replies worked. I did the following:

Implemented my <code>ng-options</code> this way:

<pre><code>&lt;select ng-model="test" ng-options="cand.candidate for cand in candidates | unique:'candidate'"&gt;
 &lt;option value=""&gt;Select Candidate&lt;/option&gt;
&lt;/select&gt;
</code></pre>

Add your module to your app:

<pre><code>var app = angular.module('phonecatApp', ['ui.unique']);
</code></pre>

Install just Ui Utils Unique, using Bower. <a href="http://angular-ui.github.io/ui-utils/" rel="nofollow">Link to instructions.</a>

blocks|key|1568618|text|src="js/vendor/bower_components/angular-filter/dist/angular-filter.js">+
angular.module('app',+['angular.filter'])
ng-repeat="color+in+colors+%7C+unique:'name'">{{color.name}}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1568619|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>src="js/vendor/bower_components/angular-filter/dist/angular-filter.js"&gt; 
angular.module('app', ['angular.filter'])
ng-repeat="color in colors | unique:'name'"&gt;{{color.name}}
</code></pre>

If I have an array

<pre><code>$scope.colors = [
{name:'black', shade:'dark'},
{name:'white', shade:'light'},
{name:'red', shade:'dark'},
{name:'red', shade:'dark'},
{name:'yellow', shade:'light'}
</code></pre>

];

Is it possible to use ng-options to build a select element with only unique values in the dropdown, so red will only display once?

angular.js using ng-options to only display unique values

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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如果我有一个数组$scope.colors = [{name:'black', shade:'dark'},{name:'white', shade:'light'},{name:'red', shade:'dark'},{name:'red', shade:'dark'},{name:'yellow', shade:...

问使用ng- angular.js仅显示唯一值的选项
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问使用ng- angular.js仅显示唯一值的选项EN