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JavaScript Operators are the symbol which is used to perform operations on operands.

Operands can be values and variable.

10 + 20 = 30 // 10 and 20 are operands and + is operator

10 * 20 = 200 // 10 and 20 are operands and * is operator

20 - 10 = 10 // 10 and 20 are operands and - is operator

20 / 10 = 2 // 10 and 20 are operands and / is operator

Types of JavaScript Operators

• Arithmetic Operators
• Comparison Operators
• Logical Operators
• String Operators
• Assignment Operators
• Bitwise Operators
• Conditional (or ternary) Operators

Arithmetic Operators

Arithmetic Operators are used to perform arithmetic operations between operands.

Operator	Operator Name	Example
+	Addition	a + b
–	Subtraction	a – b
*	Multiplication	a * b
/	Division	a / b
%	Modulus	a % b
**	Exponentiation	a ** b
++	Increment	++a and a–
—	Decrement	–a and a–

let a = 20;
let b = 10;

// Addition
console.log('a + b = ', a + b); 
 // 30

// Subtraction
console.log('a - b = ', a - b); 
 // 10

// Multiplication
console.log('a * b = ', a * b); 
 // 200

// Division
console.log('a / b = ', a / b);
  // 2

// Remainder
console.log('a % b = ', a % b);  
 // 0

Comparison Operators

Comparison Operator are used for comparison between two operands.

Operator	Operator Name	Example
==	Equal to	a == b
!=	Not Equal to	a != b
>	Greater then	a > b
>=	Greater then or equal to	a >= b
<	Less then	a < b
<=	Less then or equal to	a <= b
===	Strictly equal (is exactly equal to )	a === b

// Equal operator
console.log(0 == 0); // true
console.log(12 == '2'); // false

// not equal operator
console.log(3 != 3); // false
console.log('hello' != 'Hello'); // true

// strict equal operator
console.log(0 === 0); // true
console.log(22 === '22'); // false

Logical Operators

Logical Operator are used to perform logical operation and it return a Boolean value (true , false).

Operator	Operator Name	Example
&&	Logical AND	a && b
||	Logical OR	a || b
!	Logical NOT	!a

let a = 1, b = 2;
(a < 2) && (b > 1); // true

String Operators

The + operator, and the += operator is used to concatenate strings.

Operator	Operator Name	Example
+	used for concatenate String	let t = “t1” + “t2”
+=	used for concatenate String	let t += “t1”

// concatenation operator
console.log('Code' + 'Shruta');let a =0
let b=1
console.log(a & b);//0
console.log(a | b);//1
console.log(a ^ b);//1
console.log(~a);//-1
console.log(b >> 1);//0
console.log(b << 1)//2
let a = 'Hello ';
a += ' World';  
console.log(a);

Assignment Operators

Assignment Operators are used to assign values to variables.

Operator	Operator Name	Example
=	Assignment Operator	a = 2
+=	Addition Assignment	a += 2
-=	Subtraction Assignment	a -= 2
*=	Multiplication Assignment	a *= 2
/=	Division Assignment	a /= 2
%=	Modulus Assignment	a %= 2
**=	Exponentiation Assignment	a **= 2

//Addition Assignment
let x = 100;
x += 15;
console.log(x);//115

//Subtraction Assignment
let y = 100;
y -= 15;
console.log(y);//85

//Multiplication Assignment
let z = 100;
z *= 15;
console.log(z);//1500

Bitwise Operators

Bitwise Operators perform operations on binary values.

Operator	Operator Name	Example
&	Bitwise AND	a & b
|	Bitwise OR	a | b
^	Bitwise XOR	a ^ b
~	Bitwise NOT	~ a
>>	Right Shift	a >> 1
<<	Left Shift	a << 1

let a =0
let b=1

//Bitwise AND
console.log(a & b);//0

//Bitwise OR
console.log(a | b);//1

//Bitwise XOR
console.log(a ^ b);//1

//Bitwise NOT
console.log(~a);//-1

//Right Shift
console.log(b >> 1);//0

//Left Shift
console.log(b << 1)//2

Conditional Operators

It assign a value to a variable based on some condition.

Syntax	Description	Example
variable_name=(condition) ?value1:value2	If condition true then value1 will be assigned to variable and if condition is false then value2 will be assigned.	a= (4>5)? 4:5 so a value is 5 here because 4>5 will return false.

!!JavaScript Operators !!.

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Written By : Ankita Kataria.