Remove all multiple spaces in Javascript and replace with single space

Question

How can I automatically replace all multiple spaces with one single space in Javascript?

I've tried with just chaining some s.replace but this doesn't seem optimal.

I'm using jQuery as well in case it's a builtin functionality.

Answer 1

You could use a regular expression replace:

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

Credit: The above regex was taken from http://stackoverflow.com/questions/1981349/regex-to-replace-multiple-spaces-with-a-single-space

Answer 2

There are a lot of options for regular expressions you could use to accomplish this. One example that will perform well is:

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

See this question for a full discussion on this exact problem: http://stackoverflow.com/questions/1981349/regex-to-replace-multiple-spaces-with-a-single-space

Answer 3

You can also replace without a regular expression.

while(str.indexOf('  ')!=-1)str.replace('  ',' ');