60 lines
3.1 KiB
Markdown
60 lines
3.1 KiB
Markdown
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---
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id: 587d7db6367417b2b2512b9a
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title: Match Characters that Occur Zero or More Times
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challengeType: 1
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videoUrl: ''
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localeTitle: 匹配出现零次或多次的字符
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---
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## Description
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<section id="description">最后一项挑战使用加<code>+</code>号来查找出现一次或多次的字符。还有一个选项可以匹配出现零次或多次的字符。执行此操作的字符是<code>asterisk</code>或<code>star</code> <code>asterisk</code> ： <code>*</code> 。 <blockquote>让soccerWord =“gooooooooal！”; <br>让gPhrase =“直觉”; <br>让oPhrase =“越过月亮”; <br> let goRegex = / go * /; <br> soccerWord.match（goRegex）; //返回[“goooooooo”] <br> gPhrase.match（goRegex）; //返回[“g”] <br> oPhrase.match（goRegex）; //返回null </blockquote></section>
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## Instructions
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<section id="instructions">创建一个正则表达式<code>chewieRegex</code>使用的<code>*</code>字符匹配所有上下<code>"a"</code>中的字符<code>chewieQuote</code> 。你的正则表达式不需要标志，它不应该与任何其他引号相匹配。 </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: 您正则表达式<code>chewieRegex</code>应该使用<code>*</code>字符匹配零个或多个<code>a</code>字符。
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testString: 'assert(/\*/.test(chewieRegex.source), "Your regex <code>chewieRegex</code> should use the <code>*</code> character to match zero or more <code>a</code> characters.");'
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- text: 你的正则表达式<code>chewieRegex</code>应匹配16个字符。
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testString: 'assert(result[0].length === 16, "Your regex <code>chewieRegex</code> should match 16 characters.");'
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- text: 你的正则表达式应该匹配<code>"Aaaaaaaaaaaaaaaa"</code> 。
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testString: 'assert(result[0] === "Aaaaaaaaaaaaaaaa", "Your regex should match <code>"Aaaaaaaaaaaaaaaa"</code>.");'
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- text: '你的正则表达式不应该与<code>"He made a fair move. Screaming about it can't help you."</code>中的任何角色相匹配<code>"He made a fair move. Screaming about it can't help you."</code>'
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testString: 'assert(!"He made a fair move. Screaming about it can\"t help you.".match(chewieRegex), "Your regex should not match any characters in <code>"He made a fair move. Screaming about it can't help you."</code>");'
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- text: '你的正则表达式不应该与<code>"Let him have it. It's not wise to upset a Wookiee."</code>中的任何角色相匹配<code>"Let him have it. It's not wise to upset a Wookiee."</code>'
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testString: 'assert(!"Let him have it. It\"s not wise to upset a Wookiee.".match(chewieRegex), "Your regex should not match any characters in <code>"Let him have it. It's not wise to upset a Wookiee."</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 chewieQuote = "Aaaaaaaaaaaaaaaarrrgh!";
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let chewieRegex = /change/; // Change this line
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let result = chewieQuote.match(chewieRegex);
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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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