The **`toExponential()`** method in JavaScript converts a number into the exponential notation in string format. If the method is invoked on an object that is not a number, a `TypeError` occurs. 

 ### Syntax 
The `toExponential()` method is declared as shown below:

# Parameters 
The `toExponential()` method takes a single optional parameter `x`.

* If `x` is not within the range 0-100, a `RangeError` occurs. 

* If `x` is not specified, the default value is the number of digits required to specify the number. 

# Return value 
The `toExponential()` method returns a string that represents the number as an exponential notation. 

# Example
The following code shows the use of the `toExponential()` method in JavaScript:

//Example 1
var num = 1.25;
console.log(num.toExponential());
//Example 2
var num2 = 1.234567;
console.log(num2.toExponential(3));



What is the toExponential() method in JavaScript?

Syntax

Parameters

Return value

Example