1. Consider the code snippet given below
var count = [1,,3];
What is the observation made?
var count = [1,,3];
2. Consider the following code snippet
var a1 = [,,,];
var a2 = new Array(3);
0 in a1
0 in a2
The result would be
var a1 = [,,,];
var a2 = new Array(3);
0 in a1
0 in a2
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 ?
if (!a[i]) continue ;
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 ?
var a = [1,2,3,4,5];
a.slice(0,3);
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
var a = [];
a.unshift(1);
a.unshift(22);
a.shift();
a.unshift(3,[4,5]);
a.shift();
a.shift();
a.shift();