Js remove spaces in string (implementation code)_javascript skills

1. Remove the spaces at both ends of the string

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

2. Remove all spaces in the string:

String.prototype.sTrim = function (){return this.replace(//s/g, ''); }

or:

var s = "asd ddd bbb sss";
var reg = //s/g;
var ss = s.replace(reg, "");
alert(ss);