Common JavaScript operators (operators)-Basic JavaScript tutorial

Basic JavaScript tutorial Arithmetic Operators

Operator	Operator description	Example	Example
+	Addition	X + Y	If X is an integer of 2, Y is an integer of 5, X + Y is equal to 7 If X is the string "text1" and Y is the string "fun ", X + Y equals to "text1fun"
-	Subtraction	X-y
*	Multiplication	X * y
/	Division	X/y
%	Division of the two	X % Y	If X is equal to 10, Y is equal to 3, and X % Y is equal to 1
++	Increment	X ++	If X equals 10, X ++ equals 11
--	Decrease	Y --	If y equals 10, y -- equals 9

Basic JavaScript tutorial logical operators

Operator	Operator description	Example	Example
=	Equal	X = y	If X equals 2 and Y equals 2, x = y
===	All equals (values are equal, and data types are equal)	X = y	If X is equal to integer 2 and Y is the string "2 ", Then X = y is not true.
>	Greater	X> Y
> =	Greater than or equal	X> = y
<	Less	X <Y
<=	Less than or equal	X <= y
! =	Not equal	X! = Y
! =	Not equal	X! = Y
&&	And)	X <10 & Y> 1
!	Not)	! (X = y)
|	Or (OR)	X = 8 | Y = 8

Basic JavaScript tutorial assignment operator

Operator	Operator description	Example	Example
=	Assignment	X = 5	Assign the value of integer 5 to variable X

Note:: Pay attention to the difference between value assignment (=) and equal to (=.