Can someone please explain this ruby program line by line...i am a noob

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def group_by_owners(files)
   better_hash = Hash.new { |hash, key| hash[key] = [] }              files.each_with_object(better_hash) {|(k, v), hash| hash[v] << k}
 end

group_by_owners({'Input.txt' => 'Randy', 'Code.py' => 'Stan', 'Output.txt' => 'Randy'}) #=> {"Randy"=>["Input.txt", "Output.txt"], "Stan"=>["Code.py"]}]

What I have tried:

Tried understanding it on my own and also tried stack overflow no answers

Posted 5-Oct-21 5:39am

Member 11164169

Updated 5-Oct-21 5:42am

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Richard MacCutchan 5-Oct-21 11:58am

Get a book on Ruby; it will be much faster.

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OriginalGriff · Answer 1 · 2021-10-05T05:42:00

Do you have any idea how much work explaining code line by line is?
Every single line needs a paragraph of explanation! For example:

int next = r.Next();

Create a new variable called "next" which can hold a integer value. From the previously declared Random instance "r", call the "Next" method to get a new random number, and assign it to the "next" variable.

Can you imagine how long it would take us to explain even a very short code fragment like your example, line by line?

No. It is not going to happen. If you have a specific problem, then ask a question about it. But think first - would you want to sit down for 45 minutes and type up a line-by-line description for no good reason?