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javascript - Remove all non-lower case characters from string - Stack Overflow

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?

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?

Share Improve this question asked Mar 22, 2013 at 19:59 Thomas 1,1056 gold badges19 silver badges33 bronze badges

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Sorted by: Reset to default 20

You could:

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