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);
}