https://leanwebclub.com

constructor-pattern.js

/**
 * Constructor Pattern Boilerplate
 */
let MyLibrary = (function () {

	/**
	 * Create the Constructor object
	 * @param {Number} start The starting amount
	 */
	function Constructor (start = 0) {
		this.total = start;
	}

	/**
	 * Add money to the total
	 */
	Constructor.prototype.add = function (num = 1) {
		this.total = this.total + num;
	};

	/**
	 * Remove money from the total
	 */
	Constructor.prototype.subtract = function (num = 1) {
		this.total = this.total - num;
	};

	return Constructor;

})();