Operators in JavaScript

Operators in javascript

Operators in javascript

JavaScript operators are used to assign values, compare values, perform arithmetic operations, and more.

Assignment (=) Operators

Operator Description Example
= Assign 10+10 = 20
+= 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

Arithmetic Operators

Operator Description Example
+ Addition 10+20 = 30
- Subtraction 20-10 = 10
* Multiplication 10*20 = 200
/ Division 20/10 = 2
% Modulus (Remainder) 20%10 = 0
++ Increment var a=10; a++; Now a = 11
-- Decrement var a=10; a--; Now a = 9

Comparison Operators

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

Logical Operators

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

Ternary Operator

It's the simplest form of writing the if else condition.

Example:

let marks = 30;
let result =  marks > 50 ? 'pass' : 'fail';
console.log('result = ', result)