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JavaScript

Posted by Elizabeth Mawer
Elizabeth Mawer
9,554 Points

Using AJAX on Workspaces

I followed the lesson on Treehouse regarding how to use AJAX but the new page isn't displaying? I want to display the content of a new file at the bottom of my page. All of my files are in Workspaces.

The following script is in my Head Section:

<script> var xhr = new XMLHttpRequest(); xhr.onreadystatechange = function () { if (xhr.readystate === 4) { document.getElementById('ajax').innerHTML = xhr.responseText; } }; xhr.open('GET', 'Contact.html'); xhr.send(); </script>

The following script is in the Body Section:

<div id="ajax"> followed by a closing div

Any idea where my mistakes are??

Craig Watson
Craig Watson
27,930 Points

Hi Elizabeth,

I have zero experience using AJAX, hopefully Dave McFarland can help you out here :).

Sorry to be of no help at all.

Craig

1 Answer

Sergey Podgornyy
Sergey Podgornyy
20,660 Points

You need to create element, which will call function:

<button type="button" onclick="loadDoc()">Change Content</button>

The function requests data from a web server and displays it:

<script>
function loadDoc() {
  var xhttp = new XMLHttpRequest();
  xhttp.onreadystatechange = function() {
    if (xhttp.readyState == 4 && xhttp.status == 200) {
     document.getElementById("ajax").innerHTML = xhttp.responseText;
    }
  };
  xhttp.open("GET", "Contact.html", true);
  xhttp.send();
}
</script>
Elizabeth Mawer
Elizabeth Mawer
9,554 Points

Thanks

Sergey Podgornyy
Sergey Podgornyy
20,660 Points

You are welcome