3/7 Total is not defined


#1


I've checked this so many times, please help! Had several errors that I managed to fix, but now it says:
ReferenceError: total is not defined
my current code:


var cashRegister = {
    total:0,
//insert the add method here    
    add: function(itemCost){
        this.total = 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");
cashRegister.scan("eggs");
cashRegister.scan("magazine");
cashRegister.scan("magazine");
cashRegister.scan("magazine");

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


#2

Here:

you need to add total (Set to 0) to each item cost.

Just do:

this.total += itemCost;

#3

instead of this
this.total = total += itemCost
add this
this.total += itemCost;


#4

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