JavaScript toExponential() Method

JavaScript Number Reference JavaScript Number Reference

Example

Convert a number into an exponential notation:

var num = 5.56789;
var n = num.toExponential()

The result of n will be:


Try it yourself »

More "Try it Yourself" examples below.


Definition and Usage

The toExponential() method converts a number into an exponential notation.


Browser Support

Method
toExponential() Yes Yes Yes Yes Yes

Syntax

number.toExponential(x)

Parameter Values

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

Technical Details

Return Value: A String, representing the number as an exponential notation
JavaScript Version: 1.5

Examples

More Examples

Example

Convert a number into an exponential notation:

var num = 5.56789;
var n = num.toExponential(3)

The result of n will be:


Try it yourself »

JavaScript Number Reference JavaScript Number Reference

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