Hash#keep_if() es un método de clase Hash que solo mantiene los pares de valores clave que siguen la condición de bloque.
Sintaxis: Hash.keep_if()
Parámetro: bloque de valores hash
– condiciónRetorno: par de valores clave que sigue la condición de bloque
Ejemplo 1 :
# Ruby code for Hash.keep_if() method # declaring Hash value a = {a:100, b:200} # declaring Hash value b = {a:100, c:300, b:200} # declaring Hash value c = {a:100} # keep_if Value puts "Hash a keep_if form : #{a.keep_if{|key| key != 100}}\n\n" puts "Hash b keep_if form : #{b.keep_if{|key| key = 200}}\n\n" puts "Hash c keep_if form : #{c.keep_if{|key| key != 200}}\n\n"
Producción :
Hash a keep_if form : {:a=>100, :b=>200} Hash b keep_if form : {:a=>100, :c=>300, :b=>200} Hash c keep_if form : {:a=>100}
Ejemplo #2:
# Ruby code for Hash.keep_if() method # declaring Hash value a = { "a" => 100, "b" => 200 } # declaring Hash value b = {"a" => 100} # declaring Hash value c = {"a" => 100, "c" => 300, "b" => 200} # keep_if Value puts "Hash a keep_if form : #{a.keep_if{|key| key != 100}}\n\n" puts "Hash b keep_if form : #{b.keep_if{|key| key = 200}}\n\n" puts "Hash c keep_if form : #{c.keep_if{|value| value != 200}}\n\n"
Producción :
Hash a keep_if form : {"a"=>100, "b"=>200} Hash b keep_if form : {"a"=>100} Hash c keep_if form : {"a"=>100, "c"=>300, "b"=>200}
Publicación traducida automáticamente
Artículo escrito por Kirti_Mangal y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA