Consider the following code snippet :

var a = [1,2,3,4,5];
 a.sli

Consider the following code snippet :

var a = [1,2,3,4,5];
 a.slice(0,3);

2) 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();

3) Consider the following code snippet

  var a1 = [,,,];
  var a2 = new Array(3);
  0 in a1
  0 in a2

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

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