Consider the following code snippet :

var scope = "global scope";
function checkscope() {
var scope = "local scope"; 
function f() 
{ 
     return scope; 
}
return f;

What is the function of the above code snippet?

var count = [1,,3];

A. The omitted value takes “undefined” B. This results in an error C. This results in an exception D. None of the mentioned

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

A. true false B. false true C. true true D. None of the above

A. decrements the total length by 1 B. increments the total length by 1 C. prints the first element but no effect on the length D. None of the mentioned

if (!a[i]) continue ;

A. Skips the undefined elements B. Skips the non existent elements C. Skips the null elements D. All of the mentioned