The unload event is triggered when the page is unloaded (or refreshed). You can try running the following code to learn how to implement the onunload event in JavaScript.
<!DOCTYPE html>
<html>
<body onunload="newFunc()">
<p>Close the page and see what happens!</p>
<p>This event may give unexpected results.</p>
<script>
function newFunc() {
alert("Thank you!");
}
</script>
</body>
</html>The above is the detailed content of In JavaScript, what is the purpose of the 'onunload' event?. For more information, please follow other related articles on the PHP Chinese website!
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
