JS foundation -- Operator

Arithmetic operator

A symbol that performs a series of operations

Operator	describe
+	Add
-	Subtraction
*	Multiplication
/	division
%	modulus （ remainder ）
++	Self increasing
–	Self reduction

Comparison operator

Operator	describe
==	be equal to
===	Absolutely equal to （ Values and types are equal ）
!=	It's not equal to
!==	Not absolutely equal to （ There is an inequality between value and type , Or two are not equal ）
>	Greater than
<	Less than
>=	Greater than or equal to
<=	Less than or equal to

Note the === and "!==", Both are js A special comparison operator in

Assignment operator

Operator	describe
=	x=y
+=	x+=y
-=	x-=y
*=	x*=y
/=	x/=y
%=	x%=y

Logical operators

Operator	describe
&&	and
|	or
!	not

Conditional operator

A special ternary operator , The format is as follows

var num=a?b:c;

In the above sentence num The values of are as follows
$$num=\{\begin{array}{l}b,abyreally\\ c,abyfalse\end{array}$$

An operator

Operator	describe
&	And
|	or
^	Exclusive or
~	Not
<<	Move left
>>	Move right
>>>	fill 0 Move right