Challenge Overview
Given a number from 0 to 999,999,999,999, spell out that number in English.
Introduction
Your friend Yaʻqūb works the counter at the busiest deli in town, slicing, weighing, and wrapping orders for a never-ending line of hungry customers.
To keep things moving, each customer takes a numbered ticket when they arrive.
When it’s time to call the next person, Yaʻqūb reads their number out loud, always in full English words to make sure everyone hears it clearly.
Instructions
Instructions
Given a number, your task is to express it in English words exactly as your friend should say it out loud.
Yaʻqūb expects to use numbers from 0 up to 999,999,999,999.
Examples:
- 0 → zero
- 1 → one
- 12 → twelve
- 123 → one hundred twenty-three
- 1,234 → one thousand two hundred thirty-four
Source: Exercism ruby/say