Created
June 14, 2012 13:42
-
-
Save hodbby/2930375 to your computer and use it in GitHub Desktop.
cashRegister
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<html> | |
<head><title>cashRegister</title></head> | |
<body> | |
<script type="text/javascript"> | |
function StaffMember(name,discountPercent){ | |
this.name = name; | |
this.discountPercent = discountPercent; | |
} | |
var sally = new StaffMember("Sally",5); | |
var bob = new StaffMember("Bob",10); | |
// Create yourself again as 'me' with a staff discount of 20% | |
var me = new StaffMember ("hod",20); | |
var cashRegister = { | |
total:0, | |
lastTransactionAmount: 0, | |
add: function(itemCost){ | |
this.total += (itemCost || 0); | |
this.lastTransactionAmount = 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; | |
}, | |
voidLastTranscation : function(){ | |
this.total -= this.lastTransactionAmount; | |
this.lastTransactionAmount = 0; | |
}, | |
// Create a new method applyStaffDiscount here | |
applyStaffDiscount : function (employee) { | |
this.total -= this.total * (employee.discountPercent / 100) | |
} | |
}; | |
cashRegister.scan('eggs',1); | |
cashRegister.scan('milk',1); | |
cashRegister.scan('magazine',3); | |
// Apply your staff discount by passing the 'me' object | |
// to applyStaffDiscount | |
cashRegister.applyStaffDiscount (me); | |
// Show the total bill with your discount | |
document.write('Your bill is '+cashRegister.total.toFixed(2)); | |
</script> | |
</body> | |
</html> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment