Become a Ruby Professional

This module provides a thorough explanation of modern concepts for beginners. 
Beginners will get a refresher on Ruby. Those who’re already familiar with the language will rediscover object-oriented concepts, memory organization, find career advice, and save the planet from a nuclear apocalypse.
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The Handbook for Ruby Developers

## Problem statement

In the exercise below, try to write a program that calculates the number of milliseconds in one day. How should we approach this problem? How many hours are there in one day? How many minutes are there in one hour? How many seconds are there in one minute? How many milliseconds are there in one second?


> Note: Remember, we need to indent our code in Ruby, otherwise it will give a compilation error.

## Try it yourself


# Problem statement

In the exercise below, try to write a program that calculates the number of milliseconds in one day. How should we approach this problem? How many hours are there in one day? How many minutes are there in one hour? How many seconds are there in one minute? How many milliseconds are there in one second?


> Note: Remember, we need to indent our code in Ruby, otherwise it will give a compilation error.

# Try it yourself


Write a program in Ruby to calculate the number of milliseconds in a day.


Exercise: First steps

Write a program in Ruby to calculate the number of milliseconds in a day.

First Steps

Fundamentals of Ruby

Conditional Statements

Operators and Methods

Arrays

Hash

Fun with Object Oriented Programming

Debugging in Ruby

Ruby Version Manager

Testing Ruby Programs

Appendix

Conclusion

Exercise: First steps

Problem statement