Skip to main content

alert()

Last updated 24/03/2026

Definition​

alert()
is a function on the
Five
 object that displays a dialog message.

Examples​

Basic alert with just a message​

This code displays an alert dialog to the user with the message "Failed to create customer record".
JavaScript
Alert to display if a customer record was not created
five.alert('Failed to create customer record';)

Alert with a callback​

This code displays an alert notifying the user that the customer record creation failed. The user must acknowledge the message, and an optional

callback
logs the error to Five's Inspector.
JavaScript
Alert to display if a customer record was not created with an optional callback parameter
five.alert('Failed to create customer record', () => {
    five.log('Error creating customer record : ' + err.message);
})