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The Science of Programming/SwayPresentations/Objects/ExtensionInheritance
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Extension Inheritance
Extension inheritance: whereby the subclass adds features not found
in the superclass.
function super(a)
{
var b = a + 1 * (a - 1);
this;
}
function sub()
{
var c = 3;
extends(super(c * c));
}
Now we make a sub object:
var s = sub();
inspect(s . b);
The output is:
s . b is 80
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