次のハッシュがあります。
lines[0] = {"a" => dog, "b" => 32, "c" =>555, "d" => 100}
lines[1] = {"a" => cat, "b" => 34, "c" =>554, "d" => 4542}
lines[2] = {"a" => bird, "b" => 31, "c" =>532435, "d" => 23}
最終的に次のようになるように、ハッシュを「b」で降順でソートしたいと思います。
lines[0] = {"a" => cat, "b" => 34, "c" =>554, "d" => 4542}
lines[1] = {"a" => dog, "b" => 32, "c" =>555, "d" => 100}
lines[2] = {"a" => bird, "b" => 31, "c" =>532435, "d" => 23}
それを達成するための最良の方法は何ですか?これを行うRubyのメソッドはありますか?