textmode.js / Textmodifier / once

Method: once()

once<K>(event, handler): () => void;

Register an input event listener that removes itself after the first invocation.

Type Parameters

Type Parameter	Description
K extends | keyof KeyboardEventMap | keyof MouseEventMap | keyof TouchEventMap | keyof GamepadEventMap	Event name from the InputEventMap.

Parameters

Parameter	Type	Description
event	K	The event to listen for.
handler	InputEventMap[K]	The callback to invoke once.

Returns

A dispose function that removes the listener before it fires (if needed).

() => void

Example

t.once('keyPressed', (data) => {
  console.log('First key press was:', data.key);
});