How to remove double underscores using JavaScript

Question

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

eg.

stack__overflow___website

I need to eliminate __and replace it with one _.

Answer 1

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

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

Answer 2

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