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Javascript: Add hint to Match Everything But Letters and Numbers (#19240)

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* Javascript: Add hint to Match Everything But Letters and Numbers

Add hint to Match Everything But Letters and Numbers (https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/regular-expressions/match-everything-but-letters-and-numbers and https://guide.freecodecamp.org/certifications/javascript-algorithms-and-data-structures/regular-expressions/match-everything-but-letters-and-numbers/)

* Update index.md
This commit is contained in:
greggubarev
2018-10-16 09:02:42 +04:00
committed by Quincy Larson
parent da14642ea1
commit ad25c1f253
1 changed files with 12 additions and 5 deletions
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17
client/src/guide/english/certifications/javascript-algorithms-and-data-structures/regular-expressions/match-everything-but-letters-and-numbers/index.md
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---
title: Match Everything But Letters and Numbers
---
title: Match Everything But Letters and Numbers
---
## Match Everything But Letters and Numbers
This is a stub. <a href='https://github.com/freecodecamp/guides/tree/master/src/pages/certifications/javascript-algorithms-and-data-structures/regular-expressions/match-everything-but-letters-and-numbers/index.md' target='_blank' rel='nofollow'>Help our community expand it</a>.
### Problem:
<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>.
We need to use the shorthand character class \W to count the number of non-alphanumeric characters in various quotes and strings.
<!-- The article goes here, in GitHub-flavored Markdown. Feel free to add YouTube videos, images, and CodePen/JSBin embeds -->
### Solution:
```js
let quoteSample = "The five boxing wizards jump quickly.";
let nonAlphabetRegex = /\W/gi; // Change this line
let result = quoteSample.match(nonAlphabetRegex).length;
```