Javascript and regex: remove space after the last word in a string
When you need to remove all spaces at the end:
str.replace(/\s*$/,'');
When you need to remove one space at the end:
str.replace(/\s?$/,'');
\s
means not only space but space-like characters; for example tab.
If you use jQuery, you can use the trim
function also:
str = $.trim(str);
But trim
removes spaces not only at the end of the string, at the beginning also.
Seems you need a trimRight
function. its not available until Javascript 1.8.1. Before that you can use prototyping techniques.
String.prototype.trimRight=function(){return this.replace(/\s+$/,'');}
// Now call it on any string.
var a = "a string ";
a = a.trimRight();
See more on Trim string in JavaScript? And the compatibility list
Do a google search for "javascript trim" and you will find many different solutions.
Here is a simple one:
trimmedstr = str.replace(/\s+$/, '');
You can use this code to remove a single trailing space:
.replace(/ $/, "");
To remove all trailing spaces:
.replace(/ +$/, "");
The $
matches the end of input in normal mode (it matches the end of a line in multiline mode).