what is pop-up boxes in javascript?

Popup boxes are used in Javascript to show the user a message or notification. The Alert Box, Confirm Box, and Prompt Box are the three different forms of pop-up boxes available in JavaScript. When a warning message must be produced, an alert box is employed

1. JavaScript has a number of popup windows that can be used to alert, caution, or solicit user feedback. Popup boxes should not be utilised excessively since they hinder users from accessing other parts of a programme until the popup is closed. In JavaScript, there are three main types of popup methods.

         1.Alert box

2. Check the box
3. Message box