Trim blank spaces from the right in jQuery

Question

I see the trim method in jQuery, but I can't find, in its documentation, how to trim blank spaces from only the right of the string.

As an example, if I have:

"foobar "        "foo "         " foo bar  "

Trimming the spaces from the right of the string results in:

"foobar"         "foo"          " foo bar" 

Is there any method in jQuery to trim the spaces from the right? I mean, something like ltrim and rtrim?

Answer 1

You can use a simple regex replace

string.replace(/\s+$/, '')

Demo: Fiddle

function rtrim(str){
    return str.replace(/\s+$/, '');
}

Answer 2

jQuery doesn't have the methods ltrim or rtrim.

You can do it easily:

function rtrim(str){
    return str.replace(/\s+$/, "");
}
function ltrim(str){
    return str.replace(/^\s+/, "");
}

I don't suggest you add a method on the String prototype.