Remove all non-lower case characters from string

Question

I understand that given a string str

str.replace(/\s/g,'');

will remove all spaces in a string.

How can I remove all characters that are not lower case letters from the string?

score 18 · Accepted Answer · answered Mar 22 '13 at 20:00

18

You could:

str.replace( /[^a-z]/g, '' );

answered Mar 22 '13 at 20:00

Lucas

would `str.match(/[^A-Z]/g, '');` do the same? i'm having a heck of a time with regex in JS =/ – aug2uag Mar 22 '13 at 20:01
@Lucas The OP is looking to remove all uppercase. You're removing all lowercase – Ian Mar 22 '13 at 20:02
@Lucas Oops, sorry, you have the `^` – Ian Mar 22 '13 at 20:03
1

Thanks! This works just like I wanted it. I will have to wait 10 min before I can accept your answer. – Thomas Mar 22 '13 at 20:03
@Lucas: This is the answer, but I can't accept your answer. I have to wait 8 min. – Thomas Mar 22 '13 at 20:05
This works for English, Indonesian, and Zulu. What about other languages? – Adam Jagosz Sep 22 '19 at 17:56
For other languages XRegExp can be used (this answer https://stackoverflow.com/a/9864191/6805143). – Adam Jagosz Sep 22 '19 at 18:26

1 Answers1