What is the use of "return true"?


#1

Actually i want to know that what is the use of "return true" in this program? It is working fine without "return true" .

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

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