Object JavaScript - Define module has a dependency on another module

ojs-requirejs-definemodulehasdependencies.js

// in project.js
define(
    // an optional module ID
    'product',
    
    // this module needs the discount.js as a dependency
    ['discount'],
    
    // the requireJS loader provides discount as a parameter.
    // if you have more than one in the array above, then you get 
    // them in the same order for your function.
    function (discount) {
        // properties
        var productName = '';
        var  price = 1;
        var  discountedPrice = function (level) {
             return price - (price * discount.calculatDiscount(level));
        };

        return {
            productName: productName,
            price: price,
            discountedPrice: discountedPrice
        };
    });