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add: content for challenge: match whitespace (#31691)

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This commit is contained in:
Mario Kandut
2018-12-21 02:14:29 +01:00
committed by Randell Dawson
parent ba50f794bb
commit 7cc007e306
1 changed files with 17 additions and 3 deletions
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20
guide/english/certifications/javascript-algorithms-and-data-structures/regular-expressions/match-whitespace/index.md
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@ -3,8 +3,22 @@ title: Match Whitespace
---
## Match Whitespace
This is a stub. <a href='https://github.com/freecodecamp/guides/tree/master/src/pages/certifications/javascript-algorithms-and-data-structures/regular-expressions/match-whitespace/index.md' target='_blank' rel='nofollow'>Help our community expand it</a>.
To finish this challenge, it's necessary to use the __/s__ character class in your regexp pattern.
<a href='https://github.com/freecodecamp/guides/blob/master/README.md' target='_blank' rel='nofollow'>This quick style guide will help ensure your pull request gets accepted</a>.
__\s__ matches a single white space character. (including space, tab, form feed, line feed and other Unicode spaces.
<!-- The article goes here, in GitHub-flavored Markdown. Feel free to add YouTube videos, images, and CodePen/JSBin embeds -->
For example:
```javascript
/\s\w*/
// matches " bar" in "foo bar".
```
__important:__ Characters are case sensitive in regexp. __\S__ matches a single character other than white space.
### Spoiiler Alert: Solution ahead
```javascript
let sample = "Whitespace is important in separating words";
let countWhiteSpace = /\s/g; // Change this line
let result = sample.match(countWhiteSpace);
```