Consider the following code snippet
  var a1 = [,,,];
var a2 =

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Consider the following code snippet

  var a1 = [,,,];
var a2 = new Array(3);
0 in a1
0 in a2
The result would be

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2) Consider the code snippet given below

var count = [1,,3];

What is the observation made?

3) 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 ?

4) The method or operator used to identify the array is

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

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