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miyaliu666 3ea2fe4f77 feat(i18n,curriculum): add Bilibili ids for Chinese (#43564)
Co-authored-by: Kristofer Koishigawa <scissorsneedfoodtoo@gmail.com>
Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>
2021-10-01 09:54:12 +05:30

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---
id: 5e7b9f0b0b6c005b0e76f070
title: 'Regular Expressions: Practical Applications'
challengeType: 11
videoId: xCjFU9G6x48
bilibiliIds:
aid: 546924659
bvid: BV1mq4y1H7rZ
cid: 376386493
dashedName: regular-expressions-practical-applications
---
# --question--
## --text--
What will search for a "$" in a regular expression?
## --answers--
$
---
\\dollar\\
---
\\$
---
!$
## --video-solution--
3