1.
Consider the code snippet given below
var count = [1,,3];
What is the observation made?

2.
Consider the following code snippet
var a1 = [,,,]; 
var a2 = new Array(3); 
0 in a1 
0 in a2
The result would be

3.
The pop() method of the array does which of the following task ?

4.
Consider the following code snippet :
if (!a[i]) continue ;
What is the observation made ?

5.
What will happen if reverse() and join() methods are used simultaneously ?

6.
Consider the following code snippet :
var a = [1,2,3,4,5];
a.slice(0,3);
What is the possible output for the above code snippet ?

7.
Consider the following code snippet :
var a = []; 
a.unshift(1); 
a.unshift(22);
a.shift(); 
a.unshift(3,[4,5]); 
a.shift(); 
a.shift();
a.shift();
The final output for the shift() is

8.
The primary purpose of the array map() function is that it

10.
The method or operator used to identify the array is