2/7 what could be wrong with my code


#1

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

Lesson 2. Manually add it up is just call the add method for our items
simple as :

cashRegister.add(firstprice);
cashRegister.add(secondprice);
cashRegister.add(thirdprice);
cashRegister.add(fourthprice);

#3

You sure that's 2/7? Next time, write the correct one, which is 5/7.

And your problem syntax:

Look at your spelling here.


#4

cashRegister.add(0.98);
cashRegister.add(1.23);
cashRegister.add(4.99);
cashRegister.add(0.45);