Ad
gilanivs.Euklidian-Space

Sum of natural numbers 1..n using recursion

Code
Diff
  • def sum n
	(0..n).reduce(:+)
end
    • def sum n
    • n == 1 ? 1 : n + sum(n - 1)
    • (0..n).reduce(:+)
    • end
gilanivs.Crizzooo

Hello, Ruby!

Code
Diff
  • # What are all the ways to output a string in Ruby?
def hello_ruby
  greet = "Hello Ruby!"

  print           greet, "\n"
  puts            greet
  print           greet, "\n"
  puts            greet
  $stdout.write   greet + "\n"
  $stdout.puts    greet
  $stdout.print   greet, "\n"
  $stdout <<      greet + "\n"
  (greet+"\n").chars {|c| print c}
end
    • # What are all the ways to output a string in Ruby?
    • def hello_ruby
    • greet = "Hello Ruby!"
    • print greet, "\n"
    • puts greet
    • print "#{greet}
    • "
    • puts "Hello Ruby!"
    • print greet, "
    • "
    • puts greet
    • $stdout.write greet + "\n"
    • $stdout.puts greet
    • $stdout.print greet, "\n"
    • $stdout << greet + "\n"
    • (greet+"
    • ").each_char {|c| print c}
    • (greet+"
    • ").chars {|c| print c}
    • end