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TypeScript | toExponential() Method
  • Last Updated : 05 Jun, 2020

The toExponential() method in TypeScript is used to convert a number to its exponential form. This method returns a string representing the given number object in exponential notation according to the given parameter.

Syntax: 

number.toExponential( [fractionDigits] )

Parameters: This method accepts a single parameter as mentioned above and described below:

  • fractionDigits: It is an integer value that specifies the number of digits after the decimal point. It is an optional parameter.

Return Value: The toExponential() method in TypeScript returns a string representing the number object in exponential notation with one digit before the decimal point.

Below examples illustrate the working of toExponential() method in TypeScript:



Example 1:

TypeScript




// Define a number to find the
// exponential notation
var num1 = 2762.30
  
// Find the exponential value
var val = num1.toExponential();
  
// Display the value
console.log(val)

Output: 

2.7623e+3

Example 2:

TypeScript




// Define a number to find the
// exponential notation
var num2 = 23456
  
// Find the exponential value
// with two digits after the
// decimal point
var val = num2.toExponential(2);
  
// Display the value
console.log(val)

Output: 

2.34e+4

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