Is the straightforward AJAX functionality I've implemented in my personal library enough?

Here's the specific code we're looking at:

ajax = function(url, cb)
 {
    xhr = (window.XMLHttpRequest)
        ? new XMLHttpRequest()
        : new ActiveXObject('MicrosoftXMLHTTP');
    xhr.onreadystatechange = function()
     {
        if (xhr.readyState == 4 && xhr.status == 200)
         {
            cb(xhr.responseText);
         };
     } 
    xhr.open('get', url, true);
    xhr.send();
 };

While there are pre-made libraries available, I'm currently experimenting with creating a more minimalistic library for my own needs. Do you spot any essential features missing from this function?

javascriptajax

Answer №1

While this solution seems straightforward, it appears functional without any actual testing. It's important to think about error handling and possibly implementing options for POST requests or setting headers. If your main goal is simply to retrieve data from RESTful URLs, this approach should suffice.

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