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HackerRank Ruby exercises

1. Hello HackerRank.

print "Hello HackerRank!!"

2. Everything is an object in Ruby.

print self

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Terminal and Vim

• Font / Hack.
• iTerm2 / Modern terminal.
• Homebrew / Package manager.
• Git / Version control.
• Vim / Terminal editor.

$ pwd / Current directory
$ ls -la / See all files and directories

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Table of Contents

• Introduction
• Object Oriented Programming
  • Four Principles of Object Oriented Programming
    • Composition
  • Distributed Version Control Systems
  • Methodologies
  • Best Practices
  • Testing
  • Validations and Exceptions

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Which kind of app are you looking for?

Directory...

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Test

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Test