Operators

JavaScript operators are symbols that are used to perform operations on operands. For example:

Let us take a simple expression 4 + 5 is equal to 9. Here 4 and 5 are called operands and ‘+’ is called the operator. JavaScript supports the following types of operators.

Types Of Operators

1. Arithmetic Operators
2. Comparison (Relational) Operators
3. Bitwise Operators
4. Logical Operators
5. Assignment Operators
6. Special Operators

1) Arthmetic Operator

Two type of arithematic operator

1) Binary Operator

Operator	Description	Example
+ (Plus)	(a+b)	10+10=20
- (Minus)	(a-b)	20-10=10
* (Multiply)	(a*b)	10*20=200
/ (Divide)	(a/b)	10/2=5
% (Mod)	(a%b)	10%2=0

2) Unary Operator

Operator	Description	Example
++	increment	a=10;a++;Now a=11
--	Decrement	a=10;a--;Now a=9

2) Relational Operator

Operator	Description	Example
>	Greater then	20>10 = true
<	Less then	20<10 = false
==	Is equal to	10==20 = false
===	dentical (equal and of same type)	10==20 = false
!=	Not equal to	10!=20 = true
>=	Greater than or equal to	20>=10 = true
<=	Less than or equal to	20<=10 = false

3) Logical Operator

Operator	Description	Example
&&	Logical AND	(10==20 && 20==33) = false
||	Logical OR	(10==20 || 20==33) = false
!	Logical Not	!(10==20) = true

4) Assignment (Shorthand) Operator

Operator	Description	Example
=	Assign	a=10
+=	Add and assign	var a=10; a+=20; Now a = 30
-=	Subtract and assign	var a=20; a-=10; Now a = 10
*=	Multiply and assign	var a=10; a*=20; Now a = 200
/=	Divide and assign	var a=10; a/=2; Now a = 5
%=	Modulus and assign	var a=10; a%=2; Now a = 0

if we write a=a+b then we will also write this expression a+=b it means same

5) Bitwise Operator

Operator	Description	Example
&	Bitwise AND	(10==20 & 20==33) = false
|	Bitwise OR	(10==20 | 20==33) = false
^	Bitwise XOR	(10==20 ^ 20==33) = false
~	Bitwise NOT	(~10) = -10

5) Special Operator

Operator	Description
(?:)	Conditional Operator returns value based on the condition. It is like if-else.
,	Comma Operator allows multiple expressions to be evaluated as single statement.
typeof	checks the type of object.

Assignment

1) Write a JavaScript program to compute the sum of the three numbers.

2) Write a JavaScript program to compute the mul of the five numbers.

3) Write a JavaScript program to accept two numbers and display sum, mul, div and sub.

4) Write a JavaScript program to accept a student's marks in Physics,Chemistry, and Biology. The total of these marks as well as the average should be displayed.

5) Write a JavaScript program to accept 5 numbers from the user and display average.

6) Write a JavaScript program to accept two numbers from the user and swap their values with third variable.

7) Write a JavaScript program to accept one number from the user and display square.

8) Write a JavaScript program to accept one number from the user and display cube.

9) Write a JavaScript program to accept basic salary, hra,ta,da,esi,pf from the user and calculate net salary.
[Hint: (basic+hra+ta+da)-(esi+pf).

10) Write a JavaScript program to accept shopping price from the user and display net amount to pay after 10% discount.