Skip to content
Related Articles

Related Articles

Improve Article
JavaScript Remainder(%) Operator
  • Last Updated : 22 Apr, 2021

Remainder operator is JavaScript is used to get the remaining value when an operand is divided by another operand. In some languages, % is considered as modulo. Modulo and Remainder work differently when the sign of both the operand is different.

In JavaScript remainder takes the sign of the dividend and to get modulo ((a % n) + n) % n should be used instead of a % n.

Syntax

remainder = var1 % var2

Example 1: This example returns the positive remainder in this case both modulo and remainder will be the same as both operands are positive.

Javascript




<script>
    // Initializing variables
    var a =4
    var n = 2
     
    // Calculating remainder
    var rem = a%n
     
    // Calculating modulo
    var mod = ((a%n)+n)%n
     
    // Printing result
    console.log("Remainder is "+rem)
    console.log("Modulo is "+mod)
</script>

Output:



"Remainder is 0"
"Modulo is 0"

Example 2: This example returns negative remainder as dividend is negative.

Javascript




<script>
    // Initializing variables
    var a =-4
    var n = 2
     
    // Calculating remainder
    var rem = a%n
     
    // Calculating modulo
    var mod = ((a%n)+n)%n
     
    // Printing result
    console.log(rem)
    console.log(mod)
</script>

Output:

-0
0

Example 3: Remainder with Infinity and NaN

Javascript




<script>
    // Both operands are NaN
    console.log(NaN%NaN)
     
    // Dividend is NaN
    console.log(NaN%2)
     
    // Dividend is Nan and Divisor is Infinity
    console.log(NaN%Infinity)
     
    // Dividend is Infinity and Divisor is NaN
    console.log(Infinity%NaN)
     
    // Both operands are Infinity
    console.log(Infinity%Infinity)
     
    // Dividend is infinity
    console.log(Infinity%5)
</script>

Output:

> NaN
> NaN
> NaN
> NaN
> NaN
> NaN



My Personal Notes arrow_drop_up
Recommended Articles
Page :