Typed Event Target

Typed Event Target

This is the Typed Event Target library you are looking for.

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This is the Typed Event Target library you are looking for.

Usage

• Usage

import { TypedEventTarget } from "@worker-tools/typed-event-target";

// Can use custom event maps:
class Foo extends TypedEventTarget<{ 
  "error": ErrorEvent
  "custom": CustomEvent<string>
}> {
  /* ... */
}

// Enjoy correctly typed event here:
const foo = new Foo()
foo.addEventListener("error", ev => { /* ev: ErrorEvent */ })
foo.addEventListener("custom", ev => { /* ev: CustomEvent<string> */ })
foo.addEventListener("unknown", ev => { /* ev: Event */})

// Can use built-in event maps from e.g. lib.dom.d.ts:
class WorkerLike extends TypedEventTarget<WorkerEventMap> { /* ... */ }

// Can be used as a type:
type WindowLike = TypedEventTarget<WindowEventMap>;

// Uses built-in EventTarget:
foo instanceof EventTarget // => true

// No intermediate classes:
Object.getPrototypeOf(Foo.prototype) === EventTarget.prototype // => true

// Exports helper types in case you need them:
import type { 
  TypedEventListener, 
  TypedEventListenerObject, 
  TypedEventListenerOrEventListenerObject
} from "@worker-tools/typed-event-target"

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Links: GitHub | ghuc.cc · NPM | Browse Package · deno.land | Docs

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