79 lines
2.5 KiB
Markdown
79 lines
2.5 KiB
Markdown
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---
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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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---
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## Description
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<section id='description'>
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When we start using jQuery, we will modify HTML elements without needing to actually change them in HTML.
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Let's make sure that everyone knows they shouldn't actually modify any of this code directly.
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Remember that you can start a comment with <code><!--</code> and end a comment with <code>--></code>
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Add a comment at the top of your HTML that says <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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- text: 'Start a comment with <code><!--</code> at the top of your HTML.'
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testString: 'assert(code.match(/^\s*<!--/), "Start a comment with <code><!--</code> at the top of your HTML.");'
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- text: Your comment should have the text <code>Only change code above this line</code>.
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testString: 'assert(code.match(/<!--(?!(>|->|.*-->.*this line))\s*.*this line.*\s*-->/gi), "Your comment should have the text <code>Only change code above this line</code>.");'
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- text: 'Be sure to close your comment with <code>--></code>.'
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testString: 'assert(code.match(/-->.*\n+.+/g), "Be sure to close your comment with <code>--></code>.");'
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- text: You should have the same number of comment openers and closers.
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testString: 'assert(code.match(/<!--/g).length === code.match(/-->/g).length, "You should have the same number of comment openers and closers.");'
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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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```js
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// solution required
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```
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</section>
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