使用AngularJS获取'ng-repeat'项的索引（计数器）？ [英] Get the index (counter) of an 'ng-repeat' item with AngularJS?

问题描述

我正在使用AngularJS及其 ng-repeat 指令来显示一系列问题。我需要以 1 开头的每个问题编号。如何使用 ng-repeat 显示和增加此类计数器？以下是我到目前为止：

I am using AngularJS and its ng-repeat directive to display a sequence of questions. I need to number each question starting with 1. How do I display and increment such a counter with ng-repeat? Here is what I have so far:

<ul>
    <li ng-repeat="question in questions | filter: {questionTypesId: questionType, selected: true}">
        <div>
            <span class="name">
                {{ question.questionText }}
            </span>
        </div>
        <ul>
            <li ng-repeat="answer in question.answers">
                <span class="name">
                    {{answer.selector}}. {{ answer.answerText }}
                </span>
            </li>
        </ul>
    </li>
</ul>

推荐答案

Angularjs文档中充满了示例，您只需要花一些时间探索它。

Angularjs documentation is full of examples, you just need to take some time and explore it.

在此处查看此示例： ngRepeat示例，情况相同。

See this example here : ngRepeat example , it's the same case.

<ul>
    <li ng-repeat="question in questions | filter: {questionTypesId: questionType, selected: true}">
        <div>
            <span class="name">
                {{$index + 1}} {{ question.questionText }}
            </span>
        </div>
        <ul>
            <li ng-repeat="answer in question.answers">
                <span class="name">
                    {{answer.selector}}. {{ answer.answerText }}
                </span>
            </li>
        </ul>
    </li>
</ul>

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