deru-event-emitter

event-emitter

global listening events (analogue - Vue event bus)

(best for async logic)

Installation

npm i deru-event-emitter --save

Methods

Method	Description
subscribe	subscribe to event
emit	calling event

Params

Prop	type	Default	Description
once	Boolean	false	bind event once and remove after calling

How Usage?

Import Class with module

import EventEmitter from 'deru-event-emitter';

or require type

require EventEmitter = require('deru-event-emitter');

Use new instance of Class:

// main.js
export const emitter = new EventEmitter();

Example: async confirm modal actions

// component.js
import { emitter } from './main.js';

confirmAction() {
    return new Promise(resolve => {
        emitter.subscribe('confirm', res => {
            return resolve(res);
        })
    })
}

async openModal() {
    const confirm = await confirmAction();

    if (confirm) {
        // some logic
    }
}

// modal.js
import { emitter } from './main.js';

confirmModal() {
    emitter.emit('confirm', true);
}