How to trim a string in javascript?

Question

How to trim a string in javascript?

Answer 1

There are a lot of implementations that can be used. The most obvious seems to be something like this:

String.prototype.trim = function() {
    return this.replace(/^\s+|\s+$/g, "");
};

" foo bar ".trim();  // "foo bar"

Answer 2

Check this out.

Answer 3

Simple version here What is a general function for JavaScript trim?

function trim(str) {
        return str.replace(/^\s+|\s+$/g,"");
}

Answer 4

The trim from jQuery is convenient if you are already using that framework.

I tend to use jQuery often, so trimming strings with it is natural for me. But it's possible that there is backlash against jQuery out there? :)

Answer 5

see this

String.prototype.trim=function(){a=this.replace(/^\s+/,'');return a.replace(/\s+$/,'');};

String.prototype.ltrim=function(){return this.replace(/^\s+/,'');}

String.prototype.rtrim=function(){return this.replace(/\s+$/,'');}

String.prototype.fulltrim=function(){return this.replace(/(?:(?:^|\n)\s+|\s+(?:$|\n))/g,'').replace(/\s+/g,' ');}