push_ruby.rb

alphabet = ["a", "b", "c"]
alphabet << "d" # Update me!

caption = "A giraffe surrounded by "
caption << "weezards!" # Me, too!

refactoring.rb

if 1 < 2
  puts "One is less than two!"
end
# refactored
puts "One is less than two!" if 1 < 2

#######
if 1 < 2
  puts "One is less than two!"
else
  puts "One is not less than two."
end
# refactored
puts 1 < 2 ? "One is less than two!" : "One is not less than two."

##################
puts "What's your favorite language?"
language = gets.chomp

if language == "Ruby"
  puts "Ruby is great for web apps!"
elsif language == "Python"
  puts "Python is great for science."
elsif language == "JavaScript"
  puts "JavaScript makes websites awesome."
elsif language == "HTML"
  puts "HTML is what websites are made of!"
elsif language == "CSS"
  puts "CSS makes websites pretty."
else
  puts "I don't know that language!"
end

#refactored
puts "What's your favorite language?"
language = gets.chomp

case language
when "Ruby"
  puts "Ruby is great for web apps!"
when "Python"
  puts "Python is great for science."
when "JavaScript"
  puts "JavaScript makes websites awesome."
when "HTML"
  puts "HTML is what websites are made of!"
when "CSS"
  puts "CSS makes websites pretty."
else
  puts "I don't know that language!"
end

##################
for i in (1..3)
  puts "I'm a refactoring master!"
end
# refactored
3.times { puts "I'm a refactoring master!" }

respond_to.rb

age = 26

# Add your code below!
age.respond_to?(:next)

ruby_case_1.rb

puts "Hello there!"
greeting = gets.chomp

# Add your case statement below!
case greeting
    when "English" then puts "Hello!"
    when "French" then puts "Bonjour!"
    when "German" then puts "Guten Tag!"
    when "Finnish" then puts "Haloo!"
    else puts "I don't know that language!"
end

ruby_contitional_assignment.rb

favorite_book = nil
puts favorite_book

favorite_book ||= "Cat's Cradle"
puts favorite_book

favorite_book ||= "Why's (Poignant) Guide to Ruby"
puts favorite_book

favorite_book = "Why's (Poignant) Guide to Ruby"
puts favorite_book

ruby_implicit_return.rb

def multiple_of_three(n)
  n % 3 == 0 ? "True" : "False"
end

ruby_loops.rb

my_array = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

my_array.each { |el| puts el if el % 2 == 0 }

95.upto(100) { |num| print num, " " }
# Prints 95 96 97 98 99 100

"L".upto("P") { |al| puts al }

short_cirtuit_evaluation.rb

def a
  puts "A was evaluated!"
  return true
end

def b
  puts "B was also evaluated!"
  return true
end

puts a || b
puts "------"
puts a && b

string_interpolation.rb

favorite_things = ["Ruby", "espresso", "candy"]

puts "A few of my favorite things:"

favorite_things.each do |thing|
  puts "I love #{thing}!"
end