Table of Contents

Mathematical Operators in JavaScript

In this section, we will explore all the mathematical operators and mathematical functions available in JavaScript.

To perform mathematical operation, we will need all the mathematics operators, that we know. It can be divided into given five sections:

1. JavaScript Arithmetic Operators

These operators are used to perform Arithmetic operations of numbers.

Operator	Description	Example
+	Addition	4 + 2 = 6
–	Subtraction	4 – 2 = 2
*	Multiplication	4 * 2 = 8
/	Division	4 / 2 = 2
%	Modulus (Division Remainder)	4 % 2 = 0
++	Increment	4++ = 5
—	Decrement	4– = 3

2. JavaScript Assignment Operators

These operators are used to assign values to a variable in JavaScript.

Operator	Description	Example
=	a = b	a = 3
+=	a += b à a = a + b	a += 3 à a = a + 3
-=	a -= b à a = a – b	a -= 3 à a = a – 3
*=	a = b à a = a b	a = 3 à a = a 3
/=	a /= b à a = a / b	a /= 3 à a = a / 3
%=	a%=b àa = a % b	a %= 3 à a = a % 3

3. JavaScript Comparison Operators

These operators are used to perform basic comparisons between any two numbers. In given examples, we assume that value of X = 4.

Operator	Description	Example	Result
==	Equal to	X == 5 X == 4 X == “4”	False True True
===	Equal value and equal type	X === 4 X === “4”	Ture False
!=	Not equal	X != 5	True
!==	Not equal value or not equal type	X !== 4 X !== “4” X !== 5	False True True
>	Greater than	X > 5	False
<	Less than	X < 5	True
>=	Greater than or Equal to	X >= 5	False
<=	Less than or Equal to	X <= 5	True
?	Ternary Operator Syntax: condition ? exprT : exprF ? stands for If True than : stands for If False than	var age = 25; var beverage = (age >= 21) ? “Beer” : “Juice”; console.log(beverage);	Beer

4. JavaScript Logical Operators

Logical operators are used to determine the logic between two variables, values or conditions. In some cases, we need to add two or more comparisons for same variables and in that case, we use JavaScript logical operators.

In given examples we have assumed the value of x = 2 and y = 4.

Operator	Description	Example	Result
&&	and	(x < 5 && y > 1)	True
\|\|	or	(x == 4 \|\| y == 2)	False
!	not	!(x == y)	True

5. JavaScript Bitwise Operators

The bitwise operators are very similar to the JavaScript Logical operators, except they work on a smaller scale i.e. binary representation of data.

Following are the operators with their functionality:

Operator	Functionality
op1 & op2	It compares two bits and generates a result of 1 if both bits are 1, else it returns 0.
op1 \| op2	It compares two bits and generates a result of 1 if bits are complementary, else 0.
op1^ op2	It compares two bits and generates a result of 1 if only either of the bits are 1, else 0.
~op1	It inverts all the bits of the operand (the number).
op1 >> op2	It moves the bits to the right, discards the far-right bit, and assigns the leftmost bit a value of 0.
op1 << op2	It moves the bits to the left, discards the far-left bit, and assigns the rightmost bit a value of 0.

Note: Both operands associated with the bitwise operator must be integers. All the bits, of an integer, are compared individually.

Operator	Description	Example	Bitwise Representation	Result	Decimal
&	AND	5 & 1	0101 & 0001	0001	1
\|	OR	5 \| 1	0101 \| 0001	0101	5
~	NOT	~ 5	~0101	1010	10
^	XOR	5 ^ 1	0101 ^ 0001	0100	4
<<	Zero fill left shift	5 << 1	0101 << 1	1010	10
>>	Signed right shift	5 >> 1	0101 >> 1	0010	2
>>>	Zero fill right shift	5 >>> 1	0101 >>> 1	0010	2

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Performing Maths Operation in JavaScript

Mathematical Operators in JavaScript

1. JavaScript Arithmetic Operators

2. JavaScript Assignment Operators

3. JavaScript Comparison Operators

4. JavaScript Logical Operators

5. JavaScript Bitwise Operators

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