26.
What is the difference between the two lines given below ?
!!(obj1 && obj2);
(obj1 && obj2);

27.
Consider the following code snippet :
var c = counter(), d = counter(); 
c.count()
d.count() 
c.reset() 
c.count() 
d.count()
The state stored in d is :

28.
Consider the following code snippet :
var c = counter(), d = counter(); 
function constfuncs() 
{
    var funcs = [];
    for(var i = 0; i < 10; i++)
        funcs[i] = function() { return i; };
    return funcs;
}
var funcs = constfuncs();
funcs[5]()
What does the last statement return ?

29.
What kind of scoping does JavaScript use?

30.
What must be done in order to implement Lexical Scoping?