我怎样才能获得一个角度和的结果数组QUOT; |过滤＆QUOT;在变量前pression？ [英] How can I obtain the result array of an angular "| filter" expression in a variable?

问题描述

在角度，你可以写过滤前pressions像

In angular, you can write filter expressions like

<input type="text" ng-model="query">

<table>
    <tr ng-repeat="phone in phones | filter: query">
       <td>{{phone.vendor}}</td>
       <td>{{phone.model}}</td>
    </tr>
</table>

和将更新表，只显示匹配查询哪个您进入输入文本手机

and it will update the table to show only the phones which match the query text you enter into the input.

我怎样才能过滤器，例如对应的结果数组当前显示，在一个变量 [电话对象] S（例如一个范围的变量）？

How can I get the corresponding result array of the filter, e.g. the [phone object]s that are currently displayed, in a variable (e.g. a scope variable)?

推荐答案

实际上，你可以在一个角前pression分配新变量的范围。所以，最简单的办法是做＆LT; TR NG重复=手机（filteredPhones =（手机|过滤器：查询））＆GT; 。 filteredPhones现在是在当前范围内的变量 - 见这个plnkr例如

You can actually assign new variables to the scope in an angular expression. So the simplest solution would be to do <tr ng-repeat="phone in (filteredPhones = (phones | filter: query))">. filteredPhones is now a variable in the current scope - see this plnkr example.

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