---
id: 587d7db8367417b2b2512ba3
title: Match Whitespace
challengeType: 1
videoUrl: ''
localeTitle: 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
```yml
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 \s to match all whitespace characters.");'
- text: 你的正则表达式应该在"Men are from Mars and women are from Venus."找到八个空格"Men are from Mars and women are from Venus."
testString: 'assert("Men are from Mars and women are from Venus.".match(countWhiteSpace).length == 8, "Your regex should find eight spaces in "Men are from Mars and women are from Venus."");'
- text: '你的正则表达式应该在"Space: the final frontier."找到三个空格"Space: the final frontier."'
testString: 'assert("Space: the final frontier.".match(countWhiteSpace).length == 3, "Your regex should find three spaces in "Space: the final frontier."");'
- text: ''
testString: 'assert("MindYourPersonalSpace".match(countWhiteSpace) == null, "Your regex should find no spaces in "MindYourPersonalSpace"");'
```
## Challenge Seed
```js
let sample = "Whitespace is important in separating words";
let countWhiteSpace = /change/; // Change this line
let result = sample.match(countWhiteSpace);
```
## Solution
```js
// solution required
```