Implement bubble sort in Ruby

[ArunSahadeo]

No description provided.

[jiegillet]

Using a, b = b, a notation here seems appropriate :)

[jiegillet]

Yay, Ruby code :)
Welcome ArunSahadeo

[Butt4cak3]

@jiegillet It looks like you know Ruby well enough to take this PR, so I assigned it to you.

[andreaswachowski]

For the sake of consistency, I'd suggest to modify the code such that it is accepted by rubocop. Of course, this is a matter of preference and you might have intentionally abstained from using it. (I am also just passing by after finding this project via Youtube's 3Blue1Brown channel, so I don't know where this project stands with regard to Ruby code conventions.)

The parentheses for the main() function (ie a function without parameters) strike me as particularly unconventional in Ruby. Also, the return keyword may be omitted, and Rubocop suggests to prefer each over for. Eventually, including @jiegillet's suggestion, the result would be:

#!/usr/bin/env ruby

def bubble_sort(arr)
  (0..arr.length - 1).each do
    (0..arr.length - 2).each do |k|
      next unless arr[k] > arr[k + 1]
      arr[k + 1], arr[k] = arr[k], arr[k + 1]
    end
  end

  arr
end

def main
  range = [200, 79, 69, 45, 32, 5, 15, 88, 620, 125]
  puts "The range before sorting is #{range}"
  range = bubble_sort(range)
  puts "The range after sorting is #{range}"
end

main

Edit: Credit @jiegillet for the parallel assignment suggestion.

[jiegillet]

Thanks for the input @andreaswachowski, I haven't written Ruby code in a while, so your suggestions are welcome. I also prefereach over for, although I'm not sure that next unless is better than a simple if in this case. No big deal though ^^

[jiegillet]

Let's skip the first two line, an merely import:3-7

[june128]

Shouldn't it be import:3-12? So that the whole function is included.

[jiegillet]

Now that I look again, it's import:3-15 haha. Anyway, the line count will change after more commits, the point is to just import the function :)

[andreaswachowski]

@jiegillet I agree with you that the next is debatable. I followed rubocop's suggestion here, but as mentioned often that's a matter of preference.

[ArunSahadeo]

@andreaswachowski I implemented your changes except for the next, which I did not think was necessary.

[jiegillet]

Thank you! Unfortunately I can't even see your changes because you committed changes to 252 files :)
That's our fault though, the AAA has receive a surge of activity recently and a lot has changed, including the structure of the repo. If your git skills are up to it, you can pull the latest version of the AAA on your branch and clean it up. Otherwise, maybe you can start over a new PR.

[ArunSahadeo]

Hey @jiegillet I made a forced update to my feature branch, should be up to date now (been busy at work haha)

[jiegillet]

Looks great! Thank you for your contribution!