You Deserved It!


#1


After a couple of attempts, I got the right code (pasted below). But my errors were because I had typed in cashRegister.applyStaffDiscount('me') instead of cashRegister.applyStaffDiscount(me). Why is the former code incorrect?


function StaffMember(name,discountPercent){
    this.name = name;
    this.discountPercent = discountPercent;
}

var sally = new StaffMember("Sally",5);
var bob = new StaffMember("Bob",10);

// Create yourself again as 'me' with a staff discount of 20%
var me = new StaffMember("Me",20);

var cashRegister = {
    total:0,
    lastTransactionAmount: 0,
    add: function(itemCost){
        this.total += (itemCost || 0);
        this.lastTransactionAmount = itemCost;
    },
    scan: function(item,quantity){
        switch (item){
        case "eggs": this.add(0.98 * quantity); break;
        case "milk": this.add(1.23 * quantity); break;
        case "magazine": this.add(4.99 * quantity); break;
        case "chocolate": this.add(0.45 * quantity); break;
        }
        return true;
    },
    voidLastTransaction : function(){
        this.total -= this.lastTransactionAmount;
        this.lastTransactionAmount = 0;
    },
    // Create a new method applyStaffDiscount here
    applyStaffDiscount: function(employee) {
        this.total = (100-employee.discountPercent)/100*this.total;
        }
    
};

cashRegister.scan('eggs',1);
cashRegister.scan('milk',1);
cashRegister.scan('magazine',3);
// Apply your staff discount by passing the 'me' object 
// to applyStaffDiscount
cashRegister.applyStaffDiscount(me);

// Show the total bill
console.log('Your bill is '+cashRegister.total.toFixed(2));


#2

When you put quotation marks around text, it turns the text into a string. When you type me with the quation marks you selected the variable me rather than a string says 'me'.


#3

Thanks for the quick clarification :slight_smile:


#4

hey why do you use

over what they say to use????

this.total -= this.total * (employee.discountPercent / 100);
thanks in advance


#5

This topic was automatically closed 7 days after the last reply. New replies are no longer allowed.