Result is printed yet, i get false in the bottom msg!


#1



https://www.codecademy.com/courses/close-the-super-makert/0/5?curriculum_id=506324b3a7dffd00020bf661


Oops, try again.false.


var cashRegister = {
    total: 0,
    //Dont forget to add your property
    lastTransactionAmount: 0,
    
    add: function(itemCost) {
        this.total +=  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
    voidLastTransaction : 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.voidLastTransaction;
cashRegister.scan('chocolate',3);

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


#2

@simishr,

Have a close look at

LastTransactionAmount

========================================================================

And you are NOT keeping track of your lastTransactionAmount
in your add Method


#3

thank you @leonhard.wettengmx.n !!!
problem finally solved! :slight_smile: