DisplayObject.once method

DisplayObject › once

Unofficial

Adds a one-time event listener.

Signature:

once(event: string | symbol, fn: (...args: unknown[]) => void, context?: unknown): this

Parameters:

Parameter	Type	Description
event	string | symbol	Event name.
fn	(...args: unknown[]) => void	Callback function.
context?	unknown	Callback context.

Returns: this — This object for chaining.