Inheritance in javascript, variables in the “parent”

Question

I am doing OO javascript for the first time. I have read about inheritance and prototype and thought I had cracked it. Until I discovered this little example.

Answer 1

have you already tried to define this.clone_array = []; into TestObject2 instead?

function TestObject2(data)
{
    this.clone_array = [];
    this.__construct(data);
    this.dothings = function()
    {
        this.dosomestuff();
    }
}