I’ve been racking my brain for a couple hours now and doing a lot of searching and I cannot seem to find an answer. I want to know if it is possible to return the xmlhttp.responseText value from an AJAX function to the function that originally called the AJAX function.
// Set handler for server response.
xmlhttp.onreadystatechange = function()
{
if (xmlhttp.readyState == 4)
{
if (xmlhttp.status == 200)
{
var my_response = xmlhttp.responseText;
// How can I return my_response?
}
}
}
I want to return the my_response variable to the original caller. No matter what I try I have been unsuccessful. I even tried assigning it to the global window variable using window.my_response = xmlhttp.responseText but it ends up being undefined.
Every example I’ve seen of using AJAX pretty much does something inside of the if (xmlhttp.status == 200) part to update the web page. I really do not want to do that.
Yes. The AJAX works fine and everything. I was just wondering if it is possible to return a value from that section of code.
Right now, what I am doing is passing the name of a callback function to the AJAX code and assigning it to the global window object then calling it inside the “xmlhttp.status == 200” part where I would like to return it.
I thought I read something about not being able to return values from this AJAX script because it runs asynchronously. As I am still a beginner when it comes to Javascript, I really do not know.
Thank you for the reply. If it is possible to return a value such as I indicated in my first post, please let me know.