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

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



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

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) 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

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

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