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## 3-reason-to-use-jest-to-test-your-javascript.md

      
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              August 29, 2015 14:13
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Javascript 的测试, 不管在用 jasmine 还是 mocha,
都是很头疼的事情. 但是自从有了 jest, 一口气写7个测试, 腰也不疼了, 头也不疼了.
只需要 3 个理由
在说用 jest 测为什么好之前,我们先来看我们要测的一个例子.

  
## index.html
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>testing on jsbin</title>
  <script src="http://npmcdn.com/redux@3.0.6/dist/redux.js"></script>
  <link rel="stylesheet" href="http://cdnjs.cloudflare.com/ajax/libs/mocha/1.18.2/mocha.css">
</head>
<body>
  <pre><div id="app">Result</div></pre>
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>testing on jsbin</title>
	<script src="http://npmcdn.com/redux@3.0.6/dist/redux.js"></script>
	<link rel="stylesheet" href="http://cdnjs.cloudflare.com/ajax/libs/mocha/1.18.2/mocha.css">
	</head>
	<body>
	<pre><div id="app">Result</div></pre>