How to remove double underscore using JavaScript [duplicate]

Question

How do I remove double or multiple underscores in a string using JavaScript?

E.g.

stack__overflow___website

I will need to eliminate the __ and replace it with a single _.

techfoobar · Accepted Answer · 2014-02-19 10:38:06Z

17

You can use replace() with a regex to match consecutive underscores:

'stack__overflow___website'.replace(/_+/g, '_')

answered Feb 19, 2014 at 10:38

techfoobar

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1 Comment

thank you! here's what i got from your code var removeUnderscores = _convertLowerCase.replace(/_+/g, '');

Tim Vermaelen · Accepted Answer · 2014-02-19 10:37:59Z

3

var myString = "stack__overflow___website",
    myFormattedString = myString.split('__').join('_');

answered Feb 19, 2014 at 10:37

Tim Vermaelen

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Interesting approach. I wonder what the performance considerations are here.

this is only one case.

they are supposed to be better. yet downvoted :s stackoverflow.com/questions/441018/…