nano version (~ 500b) for event-emitter.

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npm i --save onfire.js

import EE from 'onfire.js';

const ee = new EE();

ee.on('mouseover', () => {});

ee.once('click', () => {});

ee.fire('click', 1, 'hello', true);

ee.off('click');

Simple and similar with event-emitter.

• on(eventName: string, callback: Function): listen an event.
• once(eventName: string, callback: Function): listen a event only once.
• fire(eventName: string, ...parameters: any[]): emit / trigger an event with parameters.
• off(eventName?: string, callback?: Function): unsubscribe an event.

• Events subscribe and dispatcher.
• Cross-component communication for React / Vue / Angular.
• System event mechanism.

MIT@hustcc.