* feat(tools): add seed/solution restore script * chore(curriculum): remove empty sections' markers * chore(curriculum): add seed + solution to Chinese * chore: remove old formatter * fix: update getChallenges parse translated challenges separately, without reference to the source * chore(curriculum): add dashedName to English * chore(curriculum): add dashedName to Chinese * refactor: remove unused challenge property 'name' * fix: relax dashedName requirement * fix: stray tag Remove stray `pre` tag from challenge file. Signed-off-by: nhcarrigan <nhcarrigan@gmail.com> Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
42 lines
572 B
Markdown
42 lines
572 B
Markdown
---
|
|
id: 5e7b9f0b0b6c005b0e76f06f
|
|
title: 'Regular Expressions: Matching and Extracting Data'
|
|
challengeType: 11
|
|
videoId: LaCZnTbQGkE
|
|
dashedName: regular-expressions-matching-and-extracting-data
|
|
---
|
|
|
|
# --question--
|
|
|
|
## --text--
|
|
|
|
What will the following program print?:
|
|
|
|
```python
|
|
import re
|
|
s = 'A message from csev@umich.edu to cwen@iupui.edu about meeting @2PM'
|
|
lst = re.findall('\\S+@\\S+', s)
|
|
print(lst)
|
|
```
|
|
|
|
## --answers--
|
|
|
|
['csev@umich.edu', 'cwen@iupui.edu']
|
|
|
|
---
|
|
|
|
['csev@umich.edu']
|
|
|
|
---
|
|
|
|
['umich.edu', 'iupui.edu']
|
|
|
|
---
|
|
|
|
['csev@', 'cwen@']
|
|
|
|
## --video-solution--
|
|
|
|
1
|
|
|