<Script>
<!-- Variable declaration -->
var x, y, z
x = prompt("Enter first number") y
= prompt("Enter second number") x=parseInt(x)
y=parseInt(y) z
= eval(x+y)
alert("The sum of " +x+ " and" +y+ "is"
+(eval("x+y")
</Script>
In
the first line the variables are declared
Then
the variables are assigned values. The value will be whatever
the user types into the prompt box.
Prompt()
is used to call a prompt box to open. The text in quotation
marks will be displayed in the prompt box.
Then
parseInt () is used to assign the variables as integers. If
this is not done x and y would be treated like a string, and
could not be added together.
Then
the value of z is assigned
eval()
is used to calculate a mathematical operation, in this case
the addition of x and y.
