The ajax function does not provide a response

Can you help me figure out why this JavaScript function keeps returning 'undefined'? I really need it to return either true or false. I've included my code below:

function Ajax() {
    var XML;
    if(window.XMLHttpRequest)
        XML=new XMLHttpRequest();
    else
        XML=new ActiveXObject("Microsoft.XMLHTTP");
    XML.onreadystatechange=function() {
        if(XML.readyState == 4 && XML.status == 200) {
                if(XML.responseText == '1') {
                        return true;
                } else {
                        return false;
                }
        }

        XML.open("POST","p.php", false);
        XML.setRequestHeader("Content-type","application/x-www-form-urlencoded");
        XML.send("user=f");
}

I'm truly baffled as to why.

javascriptajaxfunctionreturn-value

Answer №1

Looks like your

if(XML.readyState == 4 && XML.status == 200)

is not meeting the requirements, which is why it's failing to return anything. To confirm, add another return statement within an else block above the existing if condition.

Answer №2

The reason could be that the p.php file is not accessible, causing the XML.status to never reach a value of 200. Verify the accessibility of the p.php.

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