freeCodeCamp/curriculum/challenges/chinese/02-javascript-algorithms-an.../regular-expressions/match-literal-strings.chine...

56 lines
2.2 KiB
Markdown
Raw Normal View History

---
id: 587d7db3367417b2b2512b8f
title: Match Literal Strings
challengeType: 1
videoUrl: ''
localeTitle: 匹配文字字符串
---
## Description
<section id="description">在上一次挑战中,您使用正则表达式<code>/Hello/</code>搜索了单词<code>&quot;Hello&quot;</code> 。该正则表达式搜索字符串<code>&quot;Hello&quot;</code>的文字匹配。这是另一个搜索字符串<code>&quot;Kevin&quot;</code>的文字匹配的示例: <blockquote>让testStr =“你好,我的名字是凯文。”; <br>让testRegex = / Kevin /; <br> testRegex.testtestStr; <br> //返回true </blockquote>任何其他形式的<code>&quot;Kevin&quot;</code>都不匹配。例如,正则表达式<code>/Kevin/</code>将不匹配<code>&quot;kevin&quot;</code><code>&quot;KEVIN&quot;</code><blockquote> let wrongRegex = / kevin /; <br> wrongRegex.testtestStr; <br> //返回false </blockquote>未来的挑战将展示如何匹配其他形式。 </section>
## Instructions
<section id="instructions">完成正则表达式<code>waldoRegex</code>在字符串<code>waldoIsHiding</code>使用文字匹配查找<code>&quot;Waldo&quot;</code></section>
## Tests
<section id='tests'>
```yml
tests:
- text: 你的正则表达式<code>waldoRegex</code>应该找到<code>&quot;Waldo&quot;</code>
testString: 'assert(waldoRegex.test(waldoIsHiding), "Your regex <code>waldoRegex</code> should find <code>"Waldo"</code>");'
- text: 你的正则表达式<code>waldoRegex</code>不应该搜索任何其他内容。
testString: 'assert(!waldoRegex.test("Somewhere is hiding in this text."), "Your regex <code>waldoRegex</code> should not search for anything else.");'
- text: 您应该与正则表达式执行文字字符串匹配。
testString: 'assert(!/\/.*\/i/.test(code), "You should perform a literal string match with your regex.");'
```
</section>
## Challenge Seed
<section id='challengeSeed'>
<div id='js-seed'>
```js
let waldoIsHiding = "Somewhere Waldo is hiding in this text.";
let waldoRegex = /search/; // Change this line
let result = waldoRegex.test(waldoIsHiding);
```
</div>
</section>
## Solution
<section id='solution'>
```js
// solution required
```
</section>