Consider the following code snippet :
  var a = [];
a.unshift(1);

Home | Discussion Forum

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

View More Related Question

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

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

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

4) The reduce and reduceRight methods follow a common operation called

5) Consider the following code snippet :

 if (!a[i]) continue;

What is the observation made ?

UP Gk Online Test

taiyari24hour.com