I'm doing this course for fun since I'm a Ruby enthusiastic! This material is under construction.

• Basics
• Variables
• Strings
• Conditional
• Loops
• Arrays
• Hashes
• Classes
• Methods

• Everything is an object

  p 1.methods
  p 2.between? 1,3
  p 2.even?
  p 1+2
  p 1.+(2)
  p 3 == 3

• Types

  name = 'Daniel'   # Strings
  age = 42          # Integer
  weight = 89.9     # Float
  is_tall = true    # Boolean

• Calculations

  puts 2 * 3        # Basic Arithmetic: +, -, /, *
  puts 2**3         # Expoent
  puts 10 % 3       # Modulus
  puts 1 + 2 * 3    # Order of operation
  puts 10 / 3       # Float

• Iteration with +=, -=, /=, *=

  num = 1
  num += 10

• Setting values

  sum = 1 + 2
  a, b = 1, 2
  name = 'Daniel'
  res = 1 > 2 ? true : false
  c, d, e = [1, 2, 3]

• Basics

  greeting = 'Hello Ruby'
  
  puts greeting.size
  puts greeting[0]
  puts greeting.include? 'Ruby'
  puts greeting[1, 3]
  puts greeting[-1, -4]

• Interpolation

  a = 1
  b = 4
  puts "The number #{a} is less than #{b}"

• Search in strings

  "[Luke:] I can’t believe it. [Yoda:] That is why you fail.".include? 'Yoda'
  "Ruby is a beautiful language".start_with? 'Ruby'
  "I can't work with any other language but Ruby".end_with? 'Ruby'
  "I am a Rubyist".index 'R'

• Replace

  "I should look into your problem when I get time".sub('I','We')
  "I should look into your problem when I get time".gsub('I','We')
  'RubyIsGreat'.gsub(/[aeiou]/,'1')
  'Ruby Is Pretty Brilliant'.gsub /[A-Z]/, '0'