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

id	title	challengeType	videoUrl	localeTitle
587d7db8367417b2b2512ba3	Match Whitespace	1		匹配空白

Description

迄今为止的挑战包括匹配的字母和数字字母。您还可以匹配字母之间的空格或空格。您可以使用\s搜索空格，这是一个小写的s 。此模式不仅匹配空格，还匹配回车符，制表符，换页符和换行符。你可以认为它类似于字符类[ \r\t\f\n\v] 。

让whiteSpace =“空白。到处都是空白！”
让spaceRegex = / \ s / g;
whiteSpace.match（spaceRegex）;
//返回[“”，“”]

Instructions

更改正则表达式countWhiteSpace以查找字符串中的多个空格字符。

Tests

tests:
  - text: 你的正则表达式应该使用全局标志。
    testString: 'assert(countWhiteSpace.global, "Your regex should use the global flag.");'
  - text: 你的正则表达式应该使用速记字符
    testString: 'assert(/\\s/.test(countWhiteSpace.source), "Your regex should use the shorthand character <code>\s</code> to match all whitespace characters.");'
  - text: 你的正则表达式应该在<code>&quot;Men are from Mars and women are from Venus.&quot;</code>找到八个空格<code>&quot;Men are from Mars and women are from Venus.&quot;</code>
    testString: 'assert("Men are from Mars and women are from Venus.".match(countWhiteSpace).length == 8, "Your regex should find eight spaces in <code>"Men are from Mars and women are from Venus."</code>");'
  - text: '你的正则表达式应该在<code>&quot;Space: the final frontier.&quot;</code>找到三个空格<code>&quot;Space: the final frontier.&quot;</code>'
    testString: 'assert("Space: the final frontier.".match(countWhiteSpace).length == 3, "Your regex should find three spaces in <code>"Space: the final frontier."</code>");'
  - text: ''
    testString: 'assert("MindYourPersonalSpace".match(countWhiteSpace) == null, "Your regex should find no spaces in <code>"MindYourPersonalSpace"</code>");'

Challenge Seed

let sample = "Whitespace is important in separating words";
let countWhiteSpace = /change/; // Change this line
let result = sample.match(countWhiteSpace);

Solution

// solution required