Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Comprehensive Ruby Programming

You're reading from   Comprehensive Ruby Programming From beginner to confident programmer

Arrow left icon
Product type Paperback
Published in Jun 2017
Publisher Packt
ISBN-13 9781787280649
Length 330 pages
Edition 1st Edition
Languages
Arrow right icon
Author (1):
Arrow left icon
Jordan Hudgens Jordan Hudgens
Author Profile Icon Jordan Hudgens
Jordan Hudgens
Arrow right icon
View More author details
Toc

Table of Contents (20) Chapters Close

Preface 1. Introduction to the Ruby Programming Language FREE CHAPTER 2. Ruby Variables 3. Ruby Strings 4. Working with Numbers in Ruby 5. Ruby Methods 6. Ruby Iterators and Loops 7. Ruby Collections 8. Ruby Conditionals 9. Object-Oriented Programming in Ruby 10. Working with the Filesystem in Ruby 11. Error Handling in Ruby 12. Regular Expressions in Ruby 13. Searching with grep in Ruby 14. Ruby Gems 15. Ruby Metaprogramming 16. Ruby Web Frameworks 17. Working with APIs in Ruby 18. Ruby Algorithms 19. Machine Learning

Implementing a humanize counting algorithm

In this section, we are going to solve another complicated math problem using Ruby. The question we'll answer is: If all the numbers from 1 to 1,000 were written out in words, how many letters would be used?

Though this problem looks complex, it can be solved easily in Ruby using the humanize library. We start by including the humanize gem. If you don't have this gem on your system, install it by running gem install humanize.

Now let's dive into the code:

require 'humanize'

(1..1000).to_a.map(&:humanize)

In the first line, we included the humanize gem. On the next line, we built a range from 1 to 1,000 and converted it into an array. Lastly, we called the humanize method on this array by utilizing the map method. This will convert each element in the array into its named value.

If you execute now, the output...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime
Banner background image