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Your First Ruby Program

Welcome to Ruby! In this lesson, we will learn about what Ruby is and write our very first program.

What Is It, and Why Does It Exist?

Ruby is a versatile, beginner-friendly programming language that exists to

Help every programmer in the world to be productive, to enjoy programming, and to be happy.^[1] — Yukihiro Matsumoto ("Matz"), creator of Ruby

Different programing languages have varying levels of complexity that are placed on the developer in order to perform tasks. Where Ruby stands out is that, given it is focused on developer happiness, it will always try to make the developer's life easier.

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# Your task is to use the `people` array of hashes below
# to create interpolated strings that will `puts` to the
# console the following lines:
# 
# James, aged 82, is from Charleston, SC
# Jane, aged 67, is from New York, NY
# Jude, aged 42, is from London, UK

people = [
  { name: 'James', age: '82', location: 'Charleston, SC' },

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# Use Enumerable to select all of the multiples
# of 3 in any given Range and return them in an Array.
# Hint: Check out the modulo operator.
#
# The output should read like the following:
# => [3, 6, 9, 12, 15, 18, 21, 24, 27, 30]
#
# The resources you can use:
# http://ruby-doc.org/core-2.2.3/Enumerable.html
# http://stackoverflow.com/a/3517240

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class Song
  # your code here
end

song = Song.new(
  id: 1,
  title: "Mother",
  author: "Pink Floyd",
  album: "The Wall"
)

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songs = [
  {
    id: 1,
    title: "Mother",
    author: "Pink Floyd",
    album: "The Wall"
  },
  {
    id: 2,
    title: "Since I've been Loving You",

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songs = [
  {
    id: 1,
    title: "Mother",
    author: "Pink Floyd",
    album: "The Wall"
  },
  {
    id: 2,
    title: "Since I've been Loving You",

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var str = "great minds think alike";
var output = [];
str.split('').forEach(function(letter) {
  switch (letter) {
    // your code here
  }
});
output.join(''); // should be "grtmndsthnklk"

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function greet(name, day, special) {
  // your code here
}
greet('Robert', 'Tuesday', 'fried catfish'); // This should return the String "Hello, Robert. Today is Tuesday, and the special is fried catfish."

// ==========================================================

function sumOf(numbers) {
  // your code here
}

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func greet(name: String, day: String, special: String) -> String {
    return "Hello \(name), today is \(day), and the special is \(special)."
}
greet("Bob", day: "Tuesday", special: "Catfish")