freeCodeCamp/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/regular-expressions-practical-applications.english.md

---
id: 5e7b9f0b0b6c005b0e76f070
title: 'Regular Expressions: Practical Applications'
challengeType: 11
isRequired: true
videoId: xCjFU9G6x48
---

## Description
<section id='description'>

</section>

## Tests
<section id='tests'>

```yml
question:
  text: |
    What will search for a "$" in a regular expression?

  answers:
    - |
        $
    - |
        \dollar\
    - |
        \$
    - |
        !$
  solution: 3
```

</section>