alert()

Last updated 8/07/2025

The

alert()

is a function on the

Five

object that provides a way to show a dialog to a user with a message. The message needs to be acknowledged, and you can provide an optional

callback

parameter to know when they have closed the dialog.

Available

Client

Function Signature

alert(message: string [, callback: ()=>void]) : void;

Parameter	Type	Description
message	string	Message to be displayed in the dialog as a string
callback	function	An optional callback function

Examples

alert()