JavaScript toExponential() Method

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# JavaScript toExponential() Method

JavaScript Number Object

## 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 »

## Definition and Usage

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

## Browser Support

The toExponential() method is supported in all major browsers.

## 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

## Return Value

Type | Description
--- | ---
String | The number as an exponential notation

## Technical Details

JavaScript Version: | 1.5

## More Examples

## Example

Convert a number into an exponential notation:

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

The output of the code above will be:

Try it yourself »

JavaScript Number Object

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