How to sort an array of arrays in ascending order

Question

Information in an array:

scores = %w[ScoreA ScoreB ScoreC ScoreD ScoreE ScoreF ScoreG ScoreH ScoreI ScoreJ]

needs to be presented in ascending order of the golf scores.

Can anyone help sorting the output in ascending order?

golf = scores.map do |score_number|
  print "Enter the score for #{score_number}:"
  [score_number, gets.to_i]
end

puts golf.sort

"Any tips?" is hardly a proper question. Please have a look at to ask a good question and take your time to format the code properly. You can see a preview of your post in the bottom of the editing page. — dedObed
– dedObed, Commented Mar 27, 2019 at 23:25

mechnicov · Accepted Answer · 2019-03-28 10:01:56Z

4

Just use Array#sort with block

golf.sort { |a, b| a.last <=> b.last }

or Enumerable#sort_by

golf.sort_by { |a| a.last }

The second variant can be shortened using Proc

golf.sort_by(&:last)

edited Mar 28, 2019 at 10:01

answered Mar 27, 2019 at 23:41

mechnicov

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3 Comments

sawa Over a year ago

@ray Your edit changes the code's intention. That is too much.

ray Over a year ago

You can address block as sort_by(&:last) with to format short in length.

mechnicov Over a year ago

@ray, I've updated my answer and added the link to explain it.

Ajay Barot · Accepted Answer · 2019-03-28 07:18:21Z

0

Just use Array#sort with block

golf.sort { |x, y| x[1] <=> y[1] }
=> [["ScoreH", 1], ["ScoreB", 3], ["ScoreD", 4], ["ScoreF", 9], ["ScoreA", 10], ["ScoreJ", 23], ["ScoreG", 45], ["ScoreC", 67], ["ScoreI", 87], ["ScoreE", 88]]

edited Mar 28, 2019 at 7:18

Ajay Barot

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answered Mar 28, 2019 at 4:50

Srinidhi Gs

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