freeCodeCamp/curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/regular-expressions/extract-matches.chinese.md

id, title, challengeType, videoUrl, localeTitle

id	title	challengeType	videoUrl	localeTitle
587d7db4367417b2b2512b92	Extract Matches	1		提取匹配

Description

到目前为止，您只是检查字符串中是否存在模式。您还可以使用.match()方法提取您找到的实际匹配项。要使用.match()方法，请将该方法应用于字符串并传入括号内的正则表达式。这是一个例子：

“你好，世界！”。匹配（/ Hello /）;
//返回[“Hello”]
让ourStr =“正则表达式”;
让ourRegex = / expressions /;
ourStr.match（ourRegex）;
//返回[“表达式”]

Instructions

应用.match()方法来提取单词coding 。

Tests

tests:
  - text: <code>result</code>应该有单词<code>coding</code>
    testString: 'assert(result.join() === "coding", "The <code>result</code> should have the word <code>coding</code>");'
  - text: 你的regex <code>codingRegex</code>应该搜索<code>coding</code>
    testString: 'assert(codingRegex.source === "coding", "Your regex <code>codingRegex</code> should search for <code>coding</code>");'
  - text: 您应该使用<code>.match()</code>方法。
    testString: 'assert(code.match(/\.match\(.*\)/), "You should use the <code>.match()</code> method.");'

Challenge Seed

let extractStr = "Extract the word 'coding' from this string.";
let codingRegex = /change/; // Change this line
let result = extractStr; // Change this line

Solution

// solution required