How to add a JavaScript if an error occurs when loading an image

A function is triggered if an error occurs when loading the image. The function shows an alert box with a text. In this example we refer to an image that does not exist, therefore the onerror event occurs.

index.html

Example: HTML

<!DOCTYPE html>
<html>
<body>

<img src="https://horje.com/avatar.png" onerror="myFunction()">

<p>A function is triggered if an error occurs when loading the image. The function shows an alert box with a text. In this example we refer to an image that does not exist, therefore the onerror event occurs.</p>

<script>
function myFunction() {
  alert("The image could not be loaded.");
}
</script>

</body>
</html>

Output should be:

Type:	html
Category:	Web Tutorial
Sub Category:	HTML Window Event Attributes
Uploaded by:	Admin