Form check common native JS Library

1. String to remove left and right spaces
form of inheritance
Remove left and right spaces
String.prototype.Trim = function ()
{
Return This.replace (/(^\s*) | ( \s*$)/g, "");
}
Remove left space
String.prototype.LTrim = function ()
{
Return This.replace (/(^\s*)/g, "");
}
Remove Right space
String.prototype.RTrim = function ()
{
Return This.replace (/(\s*$)/g, "");
}
Custom Function Form
Remove left space;
function LTrim (s) {
Return S.replace (/(^\s*)/g, "");
}
Remove the right space;
function RTrim (s) {
Return S.replace (/(\s*$)/g, "");
}
Remove left and right spaces;
function Trim (s) {
Return S.replace (/(^\s*) | ( \s*$)/g, "");
}

Form check common native JS Library