JavaScript Operators

Operators are the special symbols that performs some specific mathematical or logical calculations. The value that the operator operates on is called the operand. For example: a+b. Here, + is the operator that performs addition, a and b are the operands. In JavaScript, operator returns a value.

Table: Some common JavaScript operators are:
S.No	Operator Category	Operator Symbols Operator Name
	Arithmetic Operators: (Return Number data type)	+ Addition, String Concatenation - Subtraction / Division * Multiplication % Modulas (Remainder) ** Exponentiation (Power)
	Comparison/Relational Operators: (Return Boolean datatype)	> Greater than < Less than >= Greater than equals to <= Less than equals to != Not equals to == Equals to === Strict equal !== Strict not equal
	Logical operators	&& And \|\| Or ! Not ?? Nullish coalescing
	Conditional Operator	? : Ternary Operator
	Assignment operators	= Assignment Operator += Add and Assignment -= Subtract and Assignment *= Multiply and Assignment /= Divide and Assignment %= Modules and Assignment
	Increment/Decrement operators	a++ Post Increment ++a Pre Increment a-- Post Decrement --a Pre Decrement
	Bitwise Operator	& AND \| OR ^ XOR ~ NOT << Left Shift >> Right Shift >>> Zero-Fill Right Shift
	Comma Operator	, Comma

Table: Priority of operators - Highest to Lowest
Operator	Description	Associativity
( )	Parentheses	left-to-right
++ , --	Pre-increment/pre-decrement	right-to-left
* , / , %	Multiplication, division, modulus	left-to-right
+ , -	Addition, subtraction	left-to-right
< , > , <= , >=	Relational: less than, less than or equals to, greater than, greater than or equals to	left-to-right
== , !=	Relational: is equal to/is not equal to	left-to-right
++ , --	Post-increment/post-decrement	right-to-left
&&	Logical AND	left-to-right
\|\| , ??	Logical OR, Nullish coalescing	left-to-right
?:	Ternary conditional	right-to-left
= -= += >= <=	Assignment	right-to-left

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