slice ruby Hash

hash_slice.rb

params = Hash[[*'a'..'j'].zip([*1..10])] # => {"a"=>1, "b"=>2, "c"=>3, "d"=>4, "e"=>5, "f"=>6, "g"=>7, "h"=>8, "i"=>9, "j"=>10}
slice_keys = ['a','f','g']

filter = -> (key, _) { slice_keys.include?(key) }
slice = params.select &filter
params.delete_if &filter

slice   # => {"a"=>1, "f"=>6, "g"=>7}
params  # => {"b"=>2, "c"=>3, "d"=>4, "e"=>5, "h"=>8, "i"=>9, "j"=>10}