1000+ JavaScript Multiple Choice Question Answer [Solved]

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

function equalto()
{
int num=10;
if(num===10)
return true;
else
return false;
}

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

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

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

switch(expression)
{
statements
}

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

if (!a[i]) continue;

function constfuncs()
{
var funcs = [];
for(var i = 0; i < 10; i++)
funcs[i] = function() { return i; };
return funcs;
}
var funcs = constfuncs();
funcs[5]()

const object1 = {
property1: 20
};
console.log(Object.is(object1));

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

var a = [];
a.unshift(1);
a.unshift(22);
a.shift();
a.unshift(3,[4,5]);
a.shift();
a.shift();
a.shift();

var text = testing: 1, 2, 3; // Sample text
var pattern = /d+/g // Matches all instances of one or more digits

function code(id,name)
{
this.id = id;
this.name = name;
}
function pcode(id,name)
{
code.call(this,id,name);
}
document.writeln(new pcode(101,vivek).id);

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

var a=5 , b=1
var obj = { a : 10 }
with(obj)
{
alert(b)
}

const obj1 = { property1: '10'};
const obj2 = Object.freeze(obj1);
obj2.property1 = '20';
console.log(obj2.property1);

var arr = [7, 5, 9, 1];
var min = Math.min.apply(null, arr);
document.writeln(min);

var arr = [7, 5, 9, 1];
var value = Math.max.apply(null, arr);
document.writeln(value);