Discussion on: Daily Challenge #48 - Facebook Likes

[Seiei Miyagi]

ruby <3

def likes(ls)
  case ls
  in []
    "no one likes this"
  in [a]
    format "%s likes this", a
  in [a, b]
    format "%s and %s like this", a, b
  in [a, b, c]
    format "%s, %s and %s like this", a, b, c
  in [a, b, *rest]
    format "%s, %s and %d others like this", a, b, rest.size
  end
end

p likes([]) # => "no one likes this"
p likes(["Peter"]) # => "Peter likes this"
p likes(["Jacob", "Alex"]) # => "Jacob and Alex like this"
p likes(["Max", "John", "Mark"]) # => "Max, John and Mark like this"
p likes(["Alex", "Jacob", "Mark", "Max"]) # => "Alex, Jacob and 2 others like this"

[Ben Halpern]

Nice!

[Seiei Miyagi]

I can't wait ruby 2.7 release!

git clone [e-mail]:ruby/ruby.git
cd ruby
autoconf
./configure optflags="-O0" debugflags="-g3" --prefix="$HOME/.rbenv/versions/master"
make && make install
rbenv global master