1000+ JavaScript Multiple Choice Question Answer [Solved]

<script>
var x = 5;
var y = 2;
var z = x % y;
document.getElementById("demo").innerHTML = z;
</script>

const obj = {prop: 12};
Object.preventExtensions(obj);
console.log( Object.isExtensible(obj));

while (a != 0)
{
if (a == 1)
continue;
else
a++;
}

int a=0;
for(a;a<5;a++);
console.log(a);

int a=4;
int b=1;
int c=0;
If(a==b)
document.write(a);
else if(a==c)
document.write(a);
else
document.write(c);

var txt1 = good;
var txt2 = day;
document.getElementById(demo).innerHTML = txt1 + txt2;

var a = 10;
do {
a += 1;
console.log(a);
} while (a < 5);

var c = counter(), d = counter();
c.count()
d.count()
c.reset()
c.count()
d.count()

function compare()
{
int num=2;
char b=2;
if(a==b)
return true;
else
return false;
}

var o = new Object();

x = ~-y;
w = x = y = z;
q = a?b:c?d:e?f:g;

var arr=[1,2,3];
var rev=arr.reverse();
document.writeln(rev);

function tail(o)
{
for (; o.next; o = o.next) ;
return o;
}

function compare()
{
int a=1;
char b=1;
if(a.tostring()===b)
return true;
else
return false;
}

var book = {
main title: JavaScript,
'sub-title': The Definitive Guide,
for: all audiences,
author: {
firstname: David,
surname: Flanagan
}
};

var string1 = 123;
var intvalue = 123;
alert( string1 + intvalue );

function tail(o)
{
for (; o.next; o = o.next) ;
return o;
}

Int a=1;
if(a>10)
{
document.write(10);
}
else
{
document.write(a);
}

function range(int length)
{
int a=5;
for(int i=0;i<length;i++)
{
console.log(a);
}
}
range(3);

function printArray(a)
{
var len = a.length, i = 0;
if (len == 0)
console.log(Empty Array);
else
{
do
{
console.log(a[i]);
} while (++i < len);
}
}

<script>
document.getElementById("demo").innerHTML = typeof "John"
</script>

var grade='A';
var result;
switch(grade)
{
case 'A':
result+=10;
case 'B':
result+= 9;
case 'C':
result+= 8;
default:
result+= 0;
}
document.write(result);

!!(obj1 && obj2);
(obj1 && obj2);

function printprops(o)
{
for(var p in o)
console.log(p + : + o[p] +
);
}

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

switch(expression)
{
statements
}