How can I make XHR.onreadystatechange return its result?

Question

I\'m new to JavaScript programming. I\'m now working on my Google Chrome Extension. This is the code that doesn\'t work... :P

I want getURLInfo function

Answer 1

For small edit talking about post: https://stackoverflow.com/a/5362513/4766489

...
if (typeof callback == "function") {
     //var resp  = xhr.responseText;
     var resp  = JSON.parse(xhr.responseText);
     callback(resp);
}
...

And when you call

...
function(data) {
    alert(data);
    /* now do something with resp */
}
...