83 lines
3.0 KiB
Markdown
83 lines
3.0 KiB
Markdown
---
|
||
id: bad87fee1348bd9aedc08826
|
||
title: Target Elements by Class Using jQuery
|
||
required:
|
||
- link: 'https://cdnjs.cloudflare.com/ajax/libs/animate.css/3.2.0/animate.css'
|
||
challengeType: 6
|
||
videoUrl: ''
|
||
localeTitle: 使用jQuery按类目标元素
|
||
---
|
||
|
||
## Description
|
||
<section id="description">您看到我们如何使所有<code>button</code>元素反弹？我们用<code>$("button")</code>选择它们，然后我们用<code>.addClass("animated bounce");</code>为它们添加了一些CSS类<code>.addClass("animated bounce");</code> 。您刚刚使用了jQuery的<code>.addClass()</code>函数，它允许您向元素添加类。首先，让我们使用<code>$(".well")</code>选择器将你的<code>div</code>元素与类<code>well</code>对准。请注意，就像CSS声明一样，您键入一个<code>.</code>在课堂名称之前。然后使用jQuery的<code>.addClass()</code>函数中添加类<code>animated</code>和<code>shake</code> 。例如，您可以通过将以下内容添加到<code>document ready function</code>来创建具有类<code>text-primary</code> shake的所有元素： <code>$(".text-primary").addClass("animated shake");</code> </section>
|
||
|
||
## Instructions
|
||
<section id="instructions">
|
||
</section>
|
||
|
||
## Tests
|
||
<section id='tests'>
|
||
|
||
```yml
|
||
tests:
|
||
- text: 使用jQuery <code>addClass()</code>函数为类赋予<code>animated</code>并使用类<code>well</code> <code>shake</code>所有元素。
|
||
testString: 'assert($(".well").hasClass("animated") && $(".well").hasClass("shake"), "Use the jQuery <code>addClass()</code> function to give the classes <code>animated</code> and <code>shake</code> to all your elements with the class <code>well</code>.");'
|
||
- text: 只使用jQuery将这些类添加到元素中。
|
||
testString: 'assert(!code.match(/class\.\*animated/g), "Only use jQuery to add these classes to the element.");'
|
||
|
||
```
|
||
|
||
</section>
|
||
|
||
## Challenge Seed
|
||
<section id='challengeSeed'>
|
||
|
||
<div id='html-seed'>
|
||
|
||
```html
|
||
<script>
|
||
$(document).ready(function() {
|
||
$("button").addClass("animated bounce");
|
||
});
|
||
</script>
|
||
|
||
<!-- Only change code above this line. -->
|
||
|
||
<div class="container-fluid">
|
||
<h3 class="text-primary text-center">jQuery Playground</h3>
|
||
<div class="row">
|
||
<div class="col-xs-6">
|
||
<h4>#left-well</h4>
|
||
<div class="well" id="left-well">
|
||
<button class="btn btn-default target" id="target1">#target1</button>
|
||
<button class="btn btn-default target" id="target2">#target2</button>
|
||
<button class="btn btn-default target" id="target3">#target3</button>
|
||
</div>
|
||
</div>
|
||
<div class="col-xs-6">
|
||
<h4>#right-well</h4>
|
||
<div class="well" id="right-well">
|
||
<button class="btn btn-default target" id="target4">#target4</button>
|
||
<button class="btn btn-default target" id="target5">#target5</button>
|
||
<button class="btn btn-default target" id="target6">#target6</button>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
```
|
||
|
||
</div>
|
||
|
||
|
||
|
||
</section>
|
||
|
||
## Solution
|
||
<section id='solution'>
|
||
|
||
```js
|
||
// solution required
|
||
```
|
||
</section>
|