JavaScript Modulus

JavaScript Modulus (%) Arithmetic Operator is used to find the remainder of division operation of two numbers, and return the result.

Modulus Operator Symbol

The symbol used for Modulus Operator is %.

Syntax

The syntax to use Modulus Operator with operands is

operand1 % operand2

Examples

In the following example, we take two numeric values and find the remainder of their division operation using Modulus (%) Operator.

index.html

<!DOCTYPE html>
<html lang="en">
<body>
    <pre id="output"></pre>
    <script>
        var a = 4;
        var b = 3;
        var result = a % b;
        document.getElementById('output').innerHTML += a + ' % ' + b + '  is  ' + result;
    </script>
</body>
</html>

In the following example, we take two numeric values in exponential notation and find the remainder of their division using Modulus (%) Operator.

index.html

<!DOCTYPE html>
<html lang="en">
<body>
    <pre id="output"></pre>
    <script>
        var a = 41e-2;
        var b = 121e-3;
        var result = a % b;
        document.getElementById('output').innerHTML += a + ' % ' + b + '  is  ' + result;
    </script>
</body>
</html>

Conclusion

In this JavaScript Tutorial, we learned about Arithmetic Modulus Operator, its syntax, and usage with examples.