I Have to Scan It More Than Once? help!



I dont know what's wrong with the code. I get "Oops, try again. Did you scan four of each item?" as the error message.

var cashRegister = {
    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;

// scan each item 4 times
cashRegister.scan('eggs', 4);
cashRegister.scan('milk', 4);
cashRegister.scan('magazine', 4);
cashRegister.scan('chocolae', 4);

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


Check last scan() method call's arguments.


add: function(itemCost,)

why put comma there ?


thanks a lot ! I was stuck there for over an hour just because of some typos


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