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Learning TypeScript 2.x - Second Edition
book

Learning TypeScript 2.x - Second Edition

by Remo H. Jansen
April 2018
Beginner content levelBeginner
536 pages
13h 21m
English
Packt Publishing
Content preview from Learning TypeScript 2.x - Second Edition

Recursion

A function that calls itself is known as a recursive function. The following function is a recursive function that allows us to calculate the factorial of a given number n. The factorial is the product of all positive integers less than or equal to n:

const factorial = (n: number): number => 
(n === 0) ? 1 : (n * factorial(n - 1)); 

We can invoke the preceding function as follows:

factorial(5); // 120 
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Publisher Resources

ISBN: 9781788391474Supplemental Content