Ruby/Array/map
Материал из Wiki.crossplatform.ru
Содержание |
Array map with regular expression
[1,2].map{|x| /#{x}/} # => [/1/, /2/] [1,2].map{|x| /#{x}/o} # => [/1/, /1/]
Change array elements with map!
array = ["a", "b", "c"] array.map! { |x| x.downcase } p array # => ["a", "b", "c"]
Map to uppercase
words = %w[hello world] # Another collection upper = words.map {|x| x.upcase } # Map to uppercase
The map method returns a new array instead of a string.
month_a = %w[ nil jan feb mar apr may jun jul aug sep oct nov dec ] month_a_2007 = month_a.map { |e| e.capitalize + " 2007" }
