JavaScript is a scripting language that uses objects. For example, your browser window is an object. We can refer to this object via JavaScript by using "window."
The following is a method (action) of the window object. This method is called by using the following code:
window.alert("Welcome to my Web page!");
Here's the code used to create the window.alert:
<script>
// Use code to alert your user
// Use the alert method of the window object
window.alert("Welcome to my Web page!")
</script>