JavaScript Trim Function

left

// function ltrim(str, chars) {

chars = chars || "\\s";

return str.replace(new RegExp("^[" + chars + "]+", "g"), "");

}

// right

function rtrim(str, chars) {

chars = chars || "\\s";

return str.replace(new RegExp("[" + chars + "]+$", "g"), "");

}

// both

function fTrim(str){

return str.replace(/^\s+|\s+$/g,'');

}