Javascript Arithmetic Operators

Javascript Arithmetic Operators are used to perform arithmetic operations on variables.


Arithmetic Operators

Operator Name Description
+ Addition Adds two values.
- Subtraction Subtracts two values.
* Multiplication Multiplies two values.
/ Division Adds two values.
% Modulus Permits remainder of a number division.
++ Increment Increases the value of numbers by one.
-- Decrement Decreases the value of numbers by one.


The Addition Operator


The add operator can be used to directly add values or numbers. For example:


var z = 4 + 11;     // Add 4 & 11, and assign the sum to z
Live Demo!


Now let's try adding variables:



var x = 3;         // assign the value 3 to x
var y = 6;         // assign the value 6 to y
var z = x + y;     // assign the value 9 to z (3 + 6)
Live Demo!


Subtraction Operator


Subtracts the first variable/value from the second. Let's check an example:


//Subtracting values
var x = 13 - 5;

//Subtracting variables
var a = 12;
var b = 7;
var c = a - b;
Live Demo!


Multiplication Operator


The multiplication operator is used to multiply two numbers. Let's check an example:


var a = 3;
var b = 11;
var c = a * b;
// c now contains the product of 3 & 11
Live Demo!


Division Operator


This operator divides the integers. In the example below, x is divided by y, and the result is stored in z.


var x = 9;
var y = 3;
var z = x / y;
// z will have the result of division of x & y, which is 3
Live Demo!