85 lines
3.1 KiB
Markdown
85 lines
3.1 KiB
Markdown
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---
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id: bad87fee1348bd9bedc08826
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title: Target HTML Elements with Selectors Using jQuery
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required:
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- link: 'https://cdnjs.cloudflare.com/ajax/libs/animate.css/3.2.0/animate.css'
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challengeType: 6
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videoUrl: ''
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localeTitle: 使用选择器使用jQuery定位HTML元素
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---
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## Description
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<section id="description">现在我们有一个<code>document ready function</code> 。现在让我们编写第一个jQuery语句。所有jQuery函数都以<code>$</code>开头，通常称为<code>dollar sign operator</code> ，或者作为<code>bling</code> 。 jQuery经常选择带有<code>selector</code>的HTML元素，然后对该元素执行某些操作。例如，让我们使所有<code>button</code>元素反弹。只需在您的文档就绪函数中添加此代码： <code>$("button").addClass("animated bounce");</code>请注意，我们已经在后台包含了jQuery库和Animate.css库，以便您可以在编辑器中使用它们。所以你使用jQuery将Animate.css <code>bounce</code>类应用于你的<code>button</code>元素。 </section>
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## Instructions
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<section id="instructions">
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: 使用jQuery <code>addClass()</code>函数将类<code>animated</code>并<code>bounce</code>回到<code>button</code>元素。
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testString: 'assert($("button").hasClass("animated") && $("button").hasClass("bounce"), "Use the jQuery <code>addClass()</code> function to give the classes <code>animated</code> and <code>bounce</code> to your <code>button</code> elements.");'
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- text: 只使用jQuery将这些颜色添加到元素中。
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testString: 'assert(!code.match(/class.*animated/g), "Only use jQuery to add these colors to the element.");'
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- text: 你的jQuery代码应该在<code>$(document).ready();</code>功能。
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testString: 'assert(code.match(/\$\(document\)\.ready\(function.*(\s|\n)*.*button.*.addClass.*\);/g), "Your jQuery code should be within the <code>$(document).ready();</code> function.");'
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='html-seed'>
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```html
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<script>
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$(document).ready(function() {
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});
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</script>
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<!-- Only change code above this line. -->
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<div class="container-fluid">
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<h3 class="text-primary text-center">jQuery Playground</h3>
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<div class="row">
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<div class="col-xs-6">
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<h4>#left-well</h4>
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<div class="well" id="left-well">
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<button class="btn btn-default target" id="target1">#target1</button>
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<button class="btn btn-default target" id="target2">#target2</button>
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<button class="btn btn-default target" id="target3">#target3</button>
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</div>
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</div>
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<div class="col-xs-6">
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<h4>#right-well</h4>
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<div class="well" id="right-well">
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<button class="btn btn-default target" id="target4">#target4</button>
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<button class="btn btn-default target" id="target5">#target5</button>
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<button class="btn btn-default target" id="target6">#target6</button>
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</div>
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</div>
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</div>
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</div>
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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</section>
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