Js常用函数1

//出处:网上搜集
//made by yaosansi 2005-12-02
//For more visit http://www.
// Trim() , Ltrim() , RTrim() , Len()

String.prototype.Len=function()
{
 return this.replace([^x00-xff]/g,"aa").length;
}

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

String.prototype.LTrim = function()
{
return this.replace(/(^\s*)/g, "");
}

String.prototype.RTrim = function()
{
return this.replace(/(\s*$)/g, "");
}