Remove all multiple spaces in Javascript and replace them with a single space

Question

How can I automatically replace all instances of multiple spaces with a single space in Javascript?

I tried linking several s.replace , but this does not seem optimal.

I also use jQuery if it is built-in functionality.

Answer 1

You can use the regular expression replace:

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

Credit: the above regex was taken from Regex to replace multiple spaces with one space

Answer 2

There are many regex options that you could use to achieve this. One example that will work well:

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

See this question for a full discussion of this exact problem: Regex replace multiple spaces with a single space

Answer 3

you all forgot about the quantifier n {X,} http://www.w3schools.com/jsref/jsref_regexp_nxcomma.asp

here is the best solution

 str = str.replace(/\s{2,}/g, ' '); 

Answer 4

You can also replace without regex.

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