5/7 Bleep Bleep. What's wrong?


#1

Hi,

My code evaluates to "Your bill is 8.55", but I keep getting an error saying "Oops, try again. false". I don't understand how my code isn't passing. On the Javascript section of labs.codecademy.com, my code runs without any problem.

var cashRegister = {
    total:0,
    lastTransactionAmount: 0,
    add: function(itemCost) {
        this.total +=  itemCost;
        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;
    },
    //Add the voidLastTransaction Method here
    voidLastTransactionAmount: function(){
        this.total -= this.lastTransactionAmount;    
    }  
    
};

cashRegister.scan('eggs',1);
cashRegister.scan('milk',1);
cashRegister.scan('magazine',1);
cashRegister.scan('chocolate',4);

//Void the last transaction and then add 3 instead
cashRegister.voidLastTransactionAmount();
cashRegister.scan('chocolate',3);

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

What am I doing wrong?

Thanks,
S


#2

change the above function name to correct function name

i.e., cashRegister.voidLastTransaction();