Javascript Operators

Assignment Operator

Assign values to variables and add them together:

var x = 5;         // assign the value 5 to x
var y = 2;         // assign the value 2 to y
var z = x + y;     // assign the value 7 to z (5 + 2)

The assignment operator (=) assigns a value to a variable.

var x = 10;

Addition Operator

The addition operator (+) adds numbers:

var x = 5;
var y = 2;
var z = x + y;

Multiplication Operator

The multiplication operator (*) multiplies numbers.

var x = 5;
var y = 2;
var z = x * y;

Arithmetic operators are used to perform arithmetic on numbers:

<b><u class="cdx-underline">Operator</u></b>	<b><u class="cdx-underline">Description</u></b>
+	Addition
-	Subtraction
*	Multiplication
**	Exponentiation
/	Division
%	Modulus
++	Increment
--	Decrement

Assignment operators assign values to JavaScript variables.

<b>Operator</b>	<b>Description</b>
==	equal to
===	equal value and equal type
!=	not equal
!==	not equal value or not equal type
>	greater than
<	less than
>=	greater than or equal to
<=	less than or equal to
?	ternary operator

<b>Operator</b>	<b>Description</b>
typeof	Returns the type of a variable
instanceof	Returns true if an object is an instance of an object type