JavaScript – Subtraction (-)

JavaScript Subtraction (-) Arithmetic Operator is used to perform arithmetic subtraction operation between two numbers, and return the result.

Subtraction Operator Symbol

The symbol used for Subtraction Operator is -.

Syntax

The syntax to use Subtraction Operator with operands is

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Copy
operand1 - operand2

Examples

In the following example, we take two numeric values and find their difference using Subtraction (-) 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 their difference using Subtraction (-) 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 Subtraction Operator, its syntax, and usage with examples.