JavaScript operators (from rule Crip: The definitive guide, 4th guide)

Table 5-1. JavaScript operators

P	A	Operator	Operand type (s)	Operation completed MED
15	L	.	Object, identifier	Property access
	L	[]	Array, integer	Array index
	L	()	Function, arguments	Function call
	R	New	Constructor call	Create new object
14	R	++	Lvalue	Pre-or post-increment (unary)
	R	--	Lvalue	Pre-or post-decrement (unary)
	R	-	Number	Unary minus (negation)
	R	+	Number	Unary plus (no-op)
	R	~	Integer	Bitwise complement (unary)
	R	!	Boolean	Logical complement (unary)
	R	Delete	Lvalue	Undefine a property (unary)
	R	Typeof	Any	Return data type (unary)
	R	Void	Any	Return undefined value (unary)
13	L	*,/, %	Numbers	Multiplication, division, remainder
12	L	+ ,-	Numbers	Addition, subtraction
	L	+	Strings	String concatenation
11	L	<	Integers	Left shift
	L	>	Integers	Right shift with sign-extension
	L	>>>	Integers	Right shift with zero extension
10	L	<, <=	Numbers or strings	Less than, less than or equal
	L	>,>=	Numbers or strings	Greater than, greater than or equal
	L	Instanceof	Object, constructor	Check object type
	L	In	String, object	Check whether property exists
9	L	=	Any	Test for equality
	L	! =	Any	Test for inequality
	L	===	Any	Test for identity
	L	! =	Any	Test for non-identity
8	L	&	Integers	Bitwise AND
7	L	^	Integers	Bitwise XOR
6	L	|	Integers	Bitwise OR
5	L	&&	Booleans	Logical AND
4	L	|	Booleans	Logical OR
3	R	? :	Boolean, any, any	Conditional operator (3 operands)
2	R	=	Lvalue, any	Assignment
	R	* =,/=, % =, + =, -=, <<=, >=, >>=, <=, ^ =, | =	Lvalue, any	Assignment with operation
1	L	,	Any	Multiple evaluation