JavaScript Number toExponential()
Example 1
Convert a number into an exponential notation:
let num = 5.56789;
let n = num.toExponential();
Try it Yourself »
Description
The toExponential() method converts a number into an exponential notation.
Syntax
number.toExponential(x)
Parameters
| Parameter | Description |
|---|---|
| x | Optional. An integer between 0 and 20 representing the number of digits in the notation after the decimal point. If omitted, it is set to as many digits as necessary to represent the value |
Return Value
| A String, representing the number as an exponential notation. |
Browser Support
toExponential() is an ECMAScript3 (JavaScript 1999) feature.
It is supported in all browsers:
| Chrome | Edge | Firefox | Safari | Opera | IE |
| Yes | Yes | Yes | Yes | Yes | Yes |
