problem2

count = 0;
extend = function(Child, Parent)
        {
        var F = function() { };
        F.prototype = Parent.prototype;
        Child.prototype = new F();
        Child.prototype.constructor = Child;
        Child.super = Parent.prototype;
    };
function A() {  }
A.prototype.init = function(){ if (++count < 100) console.log('A.prototype.init.apply', this); this.name = 'A'}
function B(){  }
extend(B, A)
B.prototype.init = function(){ if (++count < 100) console.log('B.prototype.init.apply', this); if (arguments.callee === this.constructor.super.init) { this.constructor.super.constructor.super.init.apply(this,arguments); } else { this.constructor.super.init.apply(this,arguments); } this.extra = 'im B';}
function C() {  }
extend(C, B)
C.prototype.init = function(){ if (++count < 100) console.log('C.prototype.init.apply', this); if (arguments.callee === this.constructor.super.init) { this.constructor.super.constructor.super.init.apply(this,arguments); } else { this.constructor.super.init.apply(this,arguments); } this.extraC = 'mimimi';}
c= new C
>C
function D() {  }
>undefined
extend(D,C)
>undefined
D.prototype.init = function(){ if (++count < 100) console.log('D.prototype.init.apply', this); if (arguments.callee === this.constructor.super.init) { this.constructor.super.constructor.super.init.apply(this,arguments); } else { this.constructor.super.init.apply(this,arguments); } }
>function (){ if (++count < 100) console.log('D.prototype.init.apply', this); if (arguments.callee === this.constructor.super.init) { this.constructor.super.constructor.super.init.apply(this,arguments); } else { this.constructor.super.init.apply(this,arguments); } }
d = new D
>D
d.init()
>D.prototype.init.apply
>D
>C.prototype.init.apply
>D
>B.prototype.init.apply
>D
>C.prototype.init.apply
>D
>B.prototype.init.apply
>D
>C.prototype.init.apply
>D
>B.prototype.init.apply
>D
>C.prototype.init.apply
>D
>B.prototype.init.apply
>D
>C.prototype.init.apply
>D
>B.prototype.init.apply
>D
>C.prototype.init.apply
>D
>B.prototype.init.apply
>D
>C.prototype.init.apply
>D
>B.prototype.init.apply
>D
>C.prototype.init.apply
>D
>B.prototype.init.apply
>D
>RangeError: Maximum call stack size exceeded
>  arguments: Array[0]
>  get message: function getter() { [native code] }
>  set message: function setter() { [native code] }
>  stack: undefined
>  type: "stack_overflow"
>    __proto__: Error