Use
It is the entity used to represent a non-breaking space. It is essentially a standard space, the primary difference being that a browser should not break (or wrap) a line of text at the point that this occupies.
var a = 'something' + '         ' + 'something'
A common character entity used in HTML is the non-breaking space ( ).
Remember that browsers will always truncate spaces in HTML pages. If you write 10 spaces in your text, the browser will remove 9 of them. To add real spaces to your text, you can use the character entity.
http://www.w3schools.com/html/html_entities.asp
Demo
var a = 'something' + '         ' + 'something';_x000D_
_x000D_
document.body.innerHTML = a;
_x000D_