Didn't get alert message while doing ajax

Development
1

I didn’t get alert message while doing ajax . I did exact the same steps as it was in the video still didn’t get the output . i have rechecked my code. I am not able to find the error.

prob_ajax
prob_ajax1351×703 43 KB

2

Hi @vt15081998,

It seems like you’re trying to get an alert message when a button is clicked using JavaScript. However, there’s a small typo in your code that’s causing the issue. Here’s the corrected code:

<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<p id="output">Default text</p>
<input id="user_number">
<button onclick="update_user()">Submit</button>
<script type="text/javascript">
  function update_user() {
    var user_number = document.getElementById("user_number").value;
    alert(user_number);
  }
</script>
</body>
</html>

I’ve made a few corrections to your code:

  1. Changed getElementByID to getElementById.
  2. Added var before user_number to declare it as a variable.

With these changes, your code should work as expected, and you should see an alert message when you click the “Submit” button.

3

Hi, your code has onw small error. After correction the code snippet becomes:
.
.
.
function update_user(){
user_number = document.getElementById(“user_number”).value;
alert(user_number);
}
.
.
The error was a typo in the getElementById (As the Id was ID in your code).