20 lines
332 B
Markdown
20 lines
332 B
Markdown
### countVowels
|
|
|
|
Retuns `number` of vowels in provided `string`.
|
|
|
|
Use a regular expression to count the number of vowels `(A, E, I, O, U)` in a string.
|
|
|
|
```python
|
|
import re
|
|
|
|
|
|
def countVowels(str):
|
|
return len(len(re.findall(r'[aeiou]', str, re.IGNORECASE)))
|
|
|
|
```
|
|
|
|
``` python
|
|
countVowels('foobar') # 3
|
|
countVowels('gym') # 0
|
|
```
|