What will be the output?
console.log(true + true);
0
1
2
Error
document. write()
console.log()
window. alert()
innerHTML
if(a!=null)
if (!a)
if(a!null)
if(a!==null)
//This is a comment
<!--This is a comment-->
/* This is a comment */
Both A and C
=
==
===
!=
keyword
function
Declaration Statement
Data type
'This is a comment
#This is a comment
var defines a variable while let defines a constant.
There is no such major difference between them
The value of variable declared with let cannot be changed
var define function scoped variable while let define block scoped variable
variable carName;
var carName;
vari carName;
dim carName;
What is the output?
console.log("5" + 2);
7
52
Undefined
5myvalue
myvalue5
Myvalue
None of These
jscript.write("Sky is blue")
document.write("Sky is blue")
print("Sky is blue")
jscript.print("Sky is blue")
22
4
syntax error
console.log(2+"2"*2);
44
12
6
x
*
var
let
static
public
Displays a message in an alert box
Prints output to the console
Writes data to a file
Logs an error in the browser console
::
?:
??
=>
There is no such major difference between them.
The value of a variable declared with var can be changed while the value of a variable declared with let cannot be changed.
var defined function scoped variable while let define block scoped variable.
Display()
Prompt()
Alert()
Confirm()
Prints an exception error
Prints an overflow error
Displays “Infinity”
Prints the value as such
const
none of the above
/
%
^
Volatile variable
Mutable variable
Immutable variable
Dynamic variable
Division by zero
Missing of semicolons
Syntax error
Both A and B
document.getElementById()