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JavaScript AJAX Basics (retiring) AJAX Concepts Finish the AJAX Request

Don't know what's wrong

I don't know what's wrong here. It's probably something simple since I don't really have a perfect understanding of AJAX, but help would be appreciated.

app.js
var request = new XMLHttpRequest();
request.onreadystatechange = function () {
  if (request.readyState === 4) {
    document.getElementById("footer").innerHTML = request.responseText;
  }
  request.open('GET', 'footer.html');
};
index.html
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>AJAX with JavaScript</title>
  <script src="app.js"></script>
</head>
<body>
  <div id="main">
    <h1>AJAX!</h1>
  </div>
  <div id="footer"></div>
</body>
</html>

2 Answers

You should add the request outside of the function

var request = new XMLHttpRequest();
request.onreadystatechange = function () {
  if (request.readyState === 4) {
    document.getElementById("footer").innerHTML = request.responseText;
  }
};

request.open("GET", "footer.html");

Oh lol I thought the end of the function was outside the if brackets but I was still in the function