puts (Array.new(200) {(1..100).to_a[rand(100)]}).group_by { |x| (x - 1) / 10 }.sort_by { |x| x }.map {|x, y| [10 * x + 1, "-" , 10 * (x + 1), " ", "|", " ", "*" * (y.length)]}
In the above code, I need to chomp after each comma in the map block. The issue is that I keep getting the following output no matter what I do:
1
-
10
|
*************************
How can I chomp inside the map to make it look like the following
1-10 | ********************
(Array.new(200) {(1..100).to_a[rand(100)]}).group_by { |x| (x - 1) / 10 }.sort_by { |x| x }.map {|x, y| [10 * x + 1, "-" , 10 * (x + 1), " ", "|", " ", "*" * (y.length)]}.collect { |a| a.join }.each { |a| puts a }
But if your goal is to do that, why are you creating the nested arrays in the first place?
a = Array.new(200) {(1..100).to_a[rand(100)]}
a = a.group_by { |x| (x - 1) / 10 }
a = a.sort_by { |x| x }
a = a.map { |x, y| "#{10 * x + 1} - {#10 * (x + 1)} | #{'*' * (y.length)}" }
a.each { |bag| puts bag }
With some cleanup, maintaining your single-line thing:
Array.new(200) { rand(100) + 1 }.group_by { |x| (x - 1) / 10 }.sort.map { |x, y| sprintf "%2d - %3d | %s" % [10 * x + 1, 10 * (x + 1), '*' * y.length] }.each { |l| puts l }
1 - 10 | ********************
11 - 20 | *******************
21 - 30 | *************************
31 - 40 | ***********************
41 - 50 | ****************
51 - 60 | *******************
61 - 70 | *****************
71 - 80 | ****************
81 - 90 | ***********************
91 - 100 | **********************