JavaScript .toExponential()

The .toExponential() method converts a number to a string of its exponential form.

Syntax

num.toExponential(digits);

Copy to clipboard
Copy to clipboard

• digits (optional): The number of digits to keep after the decimal point.

Example

Converting number to a string:

const x = 420;

console.log(x.toExponential());
// Output: 4.2e+2

Copy to clipboard
Copy to clipboard

To verify if it is a string:

const x = 5;

console.log(typeof x.toExponential());
// Output: string

Copy to clipboard
Copy to clipboard

Codebyte Example

Visit us
Visit us
Hide code
Code
Output
Hide output
Copy to your clipboard
Copy Codebyte
Run