ruby 检查Array项是否在另一个Array中

Posted 2021-05-16

require 'set'

class Array
   def included_in? array
     array.to_set.superset?(self.to_set)
   end
end

check_me = ['hello', 'my', 'name', 'is', 'kareem']
set_me = ['name', 'is', 'kareem']

set_me.included_in?(check_me) #=> true