---
id: 5e7b9f0b0b6c005b0e76f06e
title: Regular Expressions
challengeType: 11
videoId: Yud_COr6pZo
---

## Description
<section id='description'>

</section>

## Tests
<section id='tests'>

```yml
question:
  text: |
    Which regex matches only a white space character?

  answers:
    - |
        \S
    - |
        \s
    - |
        .
    - |
        \_
    - |
        \\.
  solution: 2
```

</section>