56 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			56 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| ---
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| id: 587d7db6367417b2b2512b98
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| title: Match Single Characters Not Specified
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| challengeType: 1
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| videoUrl: ''
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| localeTitle: 匹配未指定的单个字符
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| ---
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| 
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| ## Description
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| <section id="description">到目前为止,您已创建了一组要匹配的字符,但您也可以创建一组您不想匹配的字符。这些类型的字符集称为<code>negated character sets</code> 。要创建<code>negated character set</code> ,请在<code>caret</code>括号后面和不想匹配的字符前放置一个<code>caret</code> ( <code>^</code> )。例如, <code>/[^aeiou]/gi</code>匹配所有不是元音的字符。请注意字符之类的<code>.</code> , <code>!</code> , <code>[</code> , <code>@</code> , <code>/</code>和空格匹配 - 否定元音字符集仅排除元音字符。 </section>
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| 
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| ## Instructions
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| <section id="instructions">创建一个匹配所有不是数字或元音的字符的正则表达式。请记住在正则表达式中包含适当的标志。 </section>
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| 
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| ## Tests
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| <section id='tests'>
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| 
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| ```yml
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| tests:
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|   - text: 你的正则表达式<code>myRegex</code>应匹配9项。
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|     testString: 'assert(result.length == 9, "Your regex <code>myRegex</code> should match 9 items.");'
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|   - text: 你的正则表达式<code>myRegex</code>应该使用全局标志。
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|     testString: 'assert(myRegex.flags.match(/g/).length == 1, "Your regex <code>myRegex</code> should use the global flag.");'
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|   - text: 你的正则表达式<code>myRegex</code>应该使用不区分大小写的标志。
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|     testString: 'assert(myRegex.flags.match(/i/).length == 1, "Your regex <code>myRegex</code> should use the case insensitive flag.");'
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| 
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| ```
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| 
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| </section>
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| 
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| ## Challenge Seed
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| <section id='challengeSeed'>
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| 
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| <div id='js-seed'>
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| 
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| ```js
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| let quoteSample = "3 blind mice.";
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| let myRegex = /change/; // Change this line
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| let result = myRegex; // Change this line
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| 
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| ```
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| 
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| </div>
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| 
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| 
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| 
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| </section>
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| 
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| ## Solution
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| <section id='solution'>
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| 
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| ```js
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| // solution required
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| ```
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| </section>
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