freeCodeCamp/curriculum/challenges/espanol/07-scientific-computing-wit.../python-for-everybody/regular-expressions-practic...

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---
id: 5e7b9f0b0b6c005b0e76f070
title: 'Regular Expressions: Practical Applications'
challengeType: 11
videoId: xCjFU9G6x48
dashedName: regular-expressions-practical-applications
---
# --question--
## --text--
What will search for a "$" in a regular expression?
## --answers--
$
---
\\dollar\\
---
\\$
---
!$
## --video-solution--
3