JavaScript Order of Operations

JavaScript generally follows the same order of operations as arithmetic. JavaScript has some additional arithmetic and algebraic operations of its own.

Arithmetic/Algebraic Order of Operations

Higher level is higher precedence

Level	Operator	Syntax	Associativity	Examples
20	Grouping	( expression )	left	2 * (3 + 4) == 14
16	Logical not	! value	left	!true == false
16	Bitwise not	~ value	left	~3 == -4
16	Unary plus	+ value	left	+'5' == 5
16	Negation	- value	left	-7 == 0 - 7
15	Exponentiation	value ** value	right	2 ** 3 == 8
14	Multiplication	value * value	left	3 * 4 == 12
14	Division	value / value	left	12 / 6 == 2
14	Remainder	value % value	left	8 % 3 == 2
13	Addition	value + value	left	2 + 3 == 5, 'a' + 'b' == 'ab'
13	Subtraction	value - value	left	9 - 7 == 2
12	Bitwise left shift	value << value	left	4 << 1 == 8
12	Bitwise right shift	value >> value	left	4 >> 1 == 2
12	Bitwise unsigned right shift	value >>> value	left	-4 >>> 24 == 255
11	Less than	value < value	left	3 < 4
11	Less than or equal	value <= value	left	5 <= 4
11	Greater than	value > value	left	6 > 2
11	Greater than or equal	value >= value	left	7 >= 1
10	Equality	value == value	left	8 == 8, 'a' == 'a'
10	Inequality	value != value	left	7 != 9, 'a' != 'b'
10	Strict equality	value === value	left	8 === 8, 'a' === 'a'
10	Strict inequality	value !== value	left	8 !== '8', '4' !== 4
9	Bitwise and	value & value	left	5 & 4 == 4
8	Bitwise xor	value ^ value	left	6 ^ 3 == 5
7	Bitwise or	value | value	left	2 | 1 == 3
6	Logical and	value && value	left	true && true
5	Logical or	value || value	left	true || false
4	Conditional	condition ? value : value	right	(true ? 1 : 2) == 1
3	Assignment	name = value	right	(gold = 5) == 5
1	Comma	value , value	left	(5 + 6, 3 + 4) == 7