What is the use of the Alert Function in JavaScript ?

The alert function in JavaScript is used to display a modal dialog box with a message and an OK button. It is commonly used for providing information to the user or displaying alerts for various purposes.

Example: Here, When this script runs, it will display a dialog box with the message “Hello, this is an alert!” and an OK button. The user cannot interact with the page or perform any actions until they click the OK button in the alert dialog.

Javascript

alert("Hello, this is an alert!");