如何在Angular.js选择框中有一个默认选项 [英] How to have a default option in Angular.js select box

问题描述

我搜索了Google，但在此找不到任何内容。

I have searched Google and can't find anything on this.

我有这段代码。

<select ng-model="somethingHere" 
        ng-options="option.value as option.name for option in options"
></select>

对于这样的一些数据

options = [{
   name: 'Something Cool',
   value: 'something-cool-value'
}, {
   name: 'Something Else',
   value: 'something-else-value'
}];

输出是这样的。

<select ng-model="somethingHere"  
        ng-options="option.value as option.name for option in options" 
        class="ng-pristine ng-valid">

    <option value="?" selected="selected"></option>
    <option value="0">Something Cool</option>
    <option value="1">Something Else</option>
</select>

如何将数据中的第一个选项设置为默认值，以便获得这样的结果。

How is it possible to set the first option in the data as the default value so you would get a result like this.

<select ng-model="somethingHere" ....>
    <option value="0" selected="selected">Something Cool</option>
    <option value="1">Something Else</option>
</select>

推荐答案

您只需使用ng-init 像这样

<select ng-init="somethingHere = options[0]" 
        ng-model="somethingHere" 
        ng-options="option.name for option in options">
</select>

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