Ruby/Hash/sort
Материал из Wiki.crossplatform.ru
(Различия между версиями)
ViGOur (Обсуждение | вклад) м (1 версия: Импорт выборки материалов по Ruby) |
Текущая версия на 17:57, 13 сентября 2010
Sort a hash
myHash = { 1 => "One", 2 => "Two", 3 => "Three", 4 => "Four", 5 => "Five" } p myHash # => {5=>"Five", 1=>"One", 2=>"Two", 3=>"Three", 4=>"Four"} myHash.sort # => [[1, "One"], [2, "Two"], [3, "Three"], [4, "Four"], [5, "Five"]] p myHash
When you sort a hash with the sort method, you get a multidimensional array of two-element arrays in return.
myHash = { 1 => "One", 2 => "Two", 3 => "Three", 4 =>"Four", 5 => "Five" } p myHash p myHash.sort # Hash does not have a sort! method, to change the contents of the hash in place.
