54 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
		
		
			
		
	
	
			54 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
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								---
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								id: 587d7db3367417b2b2512b8e
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								title: Using the Test Method
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								challengeType: 1
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								videoUrl: ''
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								localeTitle: 使用测试方法
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								---
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								## Description
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								<section id="description">正则表达式用于编程语言以匹配字符串的一部分。您可以创建模式来帮助您进行匹配。如果你想在字符串<code>"The dog chased the cat"</code>找到单词<code>"the"</code> ,你可以使用以下正则表达式: <code>/the/</code> 。请注意,正则表达式中不需要引号。 JavaScript有多种方法可以使用正则表达式。测试正则表达式的一种方法是使用<code>.test()</code>方法。 <code>.test()</code>方法接受正则表达式,将其应用于字符串(放在括号内),如果模式发现或不存在,则返回<code>true</code>或<code>false</code> 。 <blockquote>让testStr =“freeCodeCamp”; <br>让testRegex = / Code /; <br> testRegex.test(testStr); <br> //返回true </blockquote></section>
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								## Instructions
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								<section id="instructions">使用<code>.test()</code>方法在字符串<code>myString</code>上应用正则表达式<code>myRegex</code> 。 </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: 你应该使用<code>.test()</code>来测试正则表达式。
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								    testString: 'assert(code.match(/myRegex.test\(\s*myString\s*\)/), "You should use <code>.test()</code> to test the regex.");'
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								  - text: 您的结果应该返回<code>true</code> 。
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								    testString: 'assert(result === true, "Your result should return <code>true</code>.");'
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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='js-seed'>
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								```js
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								let myString = "Hello, World!";
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								let myRegex = /Hello/;
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								let result = myRegex; // Change this line
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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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