Simple Money Value Object

money.js

function money(value, currency) {
        var _value = value;
        var _currency = currency;

        return {
            value: function () {
                return _value;
            },
            currency: function () {
                return _currency;
            },            
		        toString: function () {
                return _value + '-' + _currency;
            }
        };
    }

    const twoDollars = money(2,'USD'); //-> 2 USD