https://github.com/so1ve/lite-emit

A simple, lightweight, and fast event emitter.
https://github.com/so1ve/lite-emit

emit emits emits-events emitter events nodejs pubsub

Last synced: 9 days ago
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A simple, lightweight, and fast event emitter.

• Host: GitHub
• URL: https://github.com/so1ve/lite-emit
• Owner: so1ve
• License: mit
• Created: 2022-08-10T03:41:06.000Z (about 2 years ago)
• Default Branch: main
• Last Pushed: 2024-04-13T19:00:30.000Z (7 months ago)
• Last Synced: 2024-04-14T09:43:37.445Z (7 months ago)
• Topics: emit, emits, emits-events, emitter, events, nodejs, pubsub
• Language: TypeScript
• Homepage:
• Size: 741 KB
• Stars: 11
• Watchers: 1
• Forks: 0
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# lite-emit

[![NPM version](https://img.shields.io/npm/v/lite-emit?color=a1b858&label=)](https://www.npmjs.com/package/lite-emit)

A simple, lightweight, and fast event emitter.

## Usage

```ts

import { LiteEmit } from "lite-emit";

interface Events {

	foo: [string];

	bar: ["bar", number, symbol];

	baz: [42];

}

const emitter = new LiteEmit();

function fooListener1(str: string) {

	console.log(str);

}

function fooListener2(str: string) {

	console.log(str);

}

function fooListener3(str: string) {

	console.log(str);

}

// Add listeners

// Chainable

emitter.on("foo", fooListener1);

emitter.on("foo", fooListener2);

emitter.on("foo", fooListener3).emit("foo", "hello");

emitter

	.on("baz", (num) => {

		console.log(num);

	})

	.emit("baz", "42");

// 42

// Remove a specified listener for a specified event

emitter.off("foo", fooListener1).emit("foo", "hello");

// Output:

// hello

// hello

// Remove all listeners for a specified event

emitter.off("foo");

// Output:

// 

emitter.emit("baz", 42);

// Output:

// 42

// Remove all wildcard listeners

emitter.off("*");

// Remove all listeners for all events

emitter.off();

```

## License

[MIT](./LICENSE) License © 2022 [Ray](https://github.com/so1ve)