JavaScript Dialog Boxes: Alert, Prompt, Confirm

In JavaScript, alert, prompt, and confirm are functions that can be used to display pop-up windows in a web browser.

1. Alert, It is used to display a simple message to the user. It takes a string argument that represents the message to be displayed. For example:

2. Prompt, It is used to ask the user for input. It takes two arguments: a string that represents the message to be displayed and a default value for the input field. It returns the value entered by the user, or null if the user clicks the "Cancel" button. For example:

3. Confirm, It is used to display a message and ask the user to confirm an action. It takes a string argument that represents the message to be displayed and returns a boolean value indicating whether the user clicked the "OK" or "Cancel" button. For example:

These functions can be used to create simple dialogs with the user and add interactivity to a web page. However, they are generally considered to be outdated and not very user-friendly, and it is generally recommended to use more modern approaches such as modal dialogs or inline notifications instead.

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