3/7 Syntax problem


#1

Hey Guys, what am I doing wrong when i run this code I get the following error: There was an error with your add function: ReferenceError: total is not defined

Any ideas on what I am doing wrong would be great!

var cashRegister = {
total: 0,
//insert the add method here
add: function(itemCost) {
total += this.itemCost;
},

scan: function (item) {
    switch (item) { 
    case "eggs": 
        this.add(0.98); 
        break;

    case "milk": 
        this.add(1.23); 
        break;

    //Add other 2 items here
    case "magazine":
        this.add(4.99);
        break;

    case "chocolate":
        this.add(0.45);
        break;
    }
}

};

//Scan 2 eggs and 3 magazines
cashRegister.scan("eggs");
cashRegister.scan("eggs");
cashRegister.scan("magazine");
cashRegister.scan("magazine");
cashRegister.scan("magazine");

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


#2

Getting an error as well! - Unexpected identifier?

My code attached

var cashRegister = {
total: 0,
//insert the add method here
add: function(itemCost){
this.total= this.total + itemCost
}

scan: function (item) {
    switch (item) { 
    case "eggs": 
        this.add(0.98); 
        break;

    case "milk": 
        this.add(1.23); 
        break;

    //Add other 2 items here
    case "magazine":
        this.add(4.99);
        break;
    case "chocolate":
        this.add(0.45);
        break;

    }
    return true;
}

};

//Scan 2 eggs and 3 magazines
cashRegister.scan("eggs",4);
cashRegister.scan("eggs",4);
cashRegister.scan("magazine",4);
cashRegister.scan("magazine",4);
cashRegister.scan("magazine",4);

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


#3

Your statement in your add function should be:

this.total += itemCost;