ape is not permitted
new Shape();</pre>
</div>
<p>Running these commands in an interactive node shell results in the following output:</p>
<div class="shell">
<pre>
$ node -i
&amp; var example = require("./build/Release/example");
undefined
&amp; var Shape = example.Shape;
undefined
&amp; var Circle = example.Circle;
undefined
&amp; var Square = example.Square;
undefined
&amp; var c = new Circle(10);
undefined
&amp; var s = new Square(10);
undefined
&amp; Shape.nshapes;
2
&amp; c.x = 20;
20
&amp; c.y = 30;
