JavaScript MCQ Solved Paper for IBPS RRB

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

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

var obj=
{
length:20,
height:35,
}
if (breadth' in obj === false)
{
obj.breadth = 12;
}
console.log(obj.breadth);

switch(expression)
{
statements
}

var a = [1,2,3,4,5];
a.slice(0,3);

function f(o)
{
if (o === undefined) debugger;
}

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

const object1 = {};
a = Symbol('a');
b = Symbol.for('b');
object1[a] = 'harry';
object1[b] = 'derry';
const objectSymbols = Object.getOwnPropertySymbols(object1);
console.log(objectSymbols.length);

int sum=0;
var arr = [10,15,20,30];
arr.forEach(function myFunction(element)
{
sum= sum+element;
});
document.writeln(sum);

var count = 0;
while (count < 10)
{
console.log(count);
count++;
}

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

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

var a= 0;
var b = 0;
while (a < 3)
{
a++;
b += a;
console.log(b);
}

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 values=[one,two,Three];
var ans=values.shift();
document.writeln(ans);

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

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

for(var num=10;num>=1;num--)
{
document.writeln(num);
}

var num=10;
while(num>=1)
{
document.writeln(num);
num++;
}

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);

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

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

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

for(var p in o)
console.log(o[p]);

for(var num=10;num>=1;num--)
{
document.writeln(num);
}

var num=10;
while(num>=1)
{
document.writeln(num);
num++;
}

var grand_Total=eval(10*10+5);