This figure again shows that every object has a prototype. Constructor function Foo also has its own
__proto__which is Function.prototype, and which in turn also references via its
__proto__property again to the Object.prototype. Thus, repeat, Foo.prototype is just an explicit property of Foo which refers to the prototype of b and c objects.
var b = new Foo(20); var c = new Foo(30);
What are the differences between
The figure was taken from dmitrysoshnikov.com.
Note: there is now a 2nd edition (2017) to the above 2010 article.