javascript - How to reduce extra white spaces except line breaks

Question

replace(/\s+/g,' '); reduces all whitespace to one space, including breaks. Sometime I have more than 1 spaces what I want to reduce to one, keeping the new lines, breaks.

I dont know what are tabs, in this text fields are only that kind of breaks, when you hit the enter key. — zsola3075457, Dec 06 '13 at 21:03
I see you used \s in your regex. `\s` is a whitespace character and represents `[\ \t\r\n\f]`, none of which you can see, and of which, space is only one of a possible 5 in the class. Tab being another one. — , Dec 07 '13 at 22:45

score 2 · Accepted Answer · edited Dec 06 '13 at 20:46

2

You should use:

string = string.replace(/ {2,}/g, ' ');

\s matches all white-spaces including newlines.

OR using lookahead:

string = string.replace(/ +(?= )/g, '');

edited Dec 06 '13 at 20:46

Tim Pietzcker

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answered Dec 06 '13 at 20:41

anubhava

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@TimPietzcker: Thanks for the edit. I should have used `/ +(?= )/` – anubhava Dec 06 '13 at 20:47
My own preference is for lookahead based regex but I believe both will behave same. – anubhava Dec 06 '13 at 20:58

javascript - How to reduce extra white spaces except line breaks

1 Answers1