function addEventListener
addEventListener<K extends keyof WindowEventMap>(type: K,listener: (this: Window,ev: WindowEventMap[K],) => any,options?: boolean | AddEventListenerOptions,): void
Registers an event listener in the global scope, which will be called
synchronously whenever the event type is dispatched.
addEventListener('unload', () => { console.log('All finished!'); });
...
dispatchEvent(new Event('unload'));
K extends keyof WindowEventMap
type: K
listener: (this: Window,ev: WindowEventMap[K],) => any
optional
options: boolean | AddEventListenerOptions
void
addEventListener(type: string,listener: EventListenerOrEventListenerObject,options?: boolean | AddEventListenerOptions,): void
listener: EventListenerOrEventListenerObject
optional
options: boolean | AddEventListenerOptions
void