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Example 13.3:
Creating Methods
This form displays all the properties for each object created and uses
the OrderAmount() method to calculate the total cost of the order. This is
order.ProductType.price multiplied times order.quantity.
This page uses the following to create the objects:
<![CDATA[
<SCRIPT LANGUAGE="JavaScript">
<!--
//==========================================================================
function OrderAmount() {
return (this.quantity * this.ProductType.price)
}
//==========================================================================
function product(nam, p) {
this.name = nam
this.price = p
}
//==========================================================================
function order(custname, prod, numbof) {
this.customer = custname
this.ProductType = prod
this.quantity = numbof
this.OrderDate = new Date()
this.OrderAmount = OrderAmount
}
var product1 = new product("TimeSaver", 23)
var product2 = new product("MoneySaver", 11)
var product3 = new product("Time n'MoneySaver", 99)
var order1 = new order("Mr Brainless", product1, 5)
var order2 = new order("Mr Bonkers", product3, 22)
var order3 = new order("Mr Bozo", product2, 1)
//==========================================================================
//-->
</SCRIPT>
]]>
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