104 lines
3.2 KiB
Markdown
104 lines
3.2 KiB
Markdown
---
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id: bad87fee1348bd9aec908857
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title: Use Comments to Clarify Code
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challengeType: 0
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forumTopicId: 18347
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localeTitle: 使用注释来说明代码
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---
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## Description
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<section id='description'>
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当我们开始使用 jQuery,我们将修改HTML元素,但是实际上我们并不是直接在 HTML 文本中修改。
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我们必须确保让每个人都知道,他们不应该直接修改此页面上这些代码。
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记住,你可以在 <code><!--</code> 为开始,<code>--></code> 为结束的地方进行评论注释(像这样,<code><!-- 我是一段注释 --></code>)。
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请你在你的 HTML 顶部加如下一段注释: <code>Only change code above this line.</code> 。
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</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: 在添加注释前,在你的 HTML 顶部增加此代码 <code><!--</code>。
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testString: assert(code.match(/^\s*<!--/));
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- text: 注释内容应该为 <code>Only change code above this line</code>。
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testString: assert(code.match(/<!--(?!(>|->|.*-->.*this line))\s*.*this line.*\s*-->/gi));
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- text: 注释应该用 <code>--></code> 进行闭合。
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testString: assert(code.match(/-->.*\n+.+/g));
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- text: 注意,注释的开始标签和闭合标签数量应该一一对应,保持数量一致。
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testString: assert(code.match(/<!--/g).length === code.match(/-->/g).length);
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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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<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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```html
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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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</section>
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