Getting an Oops, try again, false on 5/7 of the Cash Register


#1

My code is below, I am not sure what I am missing. I have been through the forums and still cannot figure out what is wrong here. The bolded text is what I have added.

Thank you for your help.

var cashRegister = {
total:0,
//Dont forget to add your property
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
viodLastTransaction: 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.viodLastTransaction();
cashRegister.scan("chocolate", 3);
//Show the total bill
console.log('Your bill is '+cashRegister.total);


#2

@siefer333,

have a goog look at

viod