JavaScript Singletone ES6 linted template

singletone_template.js

/**
 * @file singletone_template.js
 * @author tynrare
 * @version 1
 * @module Template/Singletone
 */

let instance = null;

/**
 * Default template pattern class
 * #singletone
 */
export default class SingletoneTemplate {
	/**
	 * inits fields with given properties or anything you need
	 *
	 * @private
	 */
	constructor() {
		this.field = '';
		//and do whatever you need
	}

	/**
	 * here you may add something that changes app itself and pass init arguments
	 *
	 * @param {object} properties class init properties
	*/
	init(properties){
		this.properties = properties;
		//dom.addElements(); //for example
	}

	/**
   	 * Allows to get singletone instance anywhere
   	 *
	 * @returns {object} this.#instance
	 * @static
	 * @public
	 */
	static getInstance() {
		if (!instance) {
			instance = new SingletoneTemplate();
		}

		return instance;
	}

	/**
	 * getInstance() shorthand
	 *
	 * @returns {object} this.#instance
	 * @static
	 */
	static get instance() {
		return this.getInstance();
	}
}