validating email address in as3

In this tutorial we will learn how to creating RegExp Validation

this is the code.


var bool:Boolean;
var str:String = "";
function checkEmail(s:String):Boolean
{

    //This tests for correct email address

    var p:RegExp = /(\w|[_.\-])+@((\w|-)+\.)+\w{2,4}+/;
    var r:Object = p.exec(s);
    if (r == null)
    {
        return false;

    }

    return true;

}

function onClick(event:Event):void
{
    str=input_txt.text;
    if (str.length > 1)
    {
        bool = (checkEmail(str));
        if (bool)
        {
            output_txt.text = "Thank You !";
        } else
        {
            output_txt.text = "Invalid E-mail";
        }
    } else
    {
        output_txt.text = "Please Enter your E-mail !";
    }
    str="";
}

check_mc.addEventListener(MouseEvent.CLICK, onClick);


Preview

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