rubyruby-on-rails-5ruby-2.6

What is the Ruby equivalent of Python's iter()/next()?

In python I can get an iterator from any iterable with iter(); and then I can call next(my_iter) to get the next element.

Is there any equivalent in ruby/rails?

Solution

  • .to_enum will yield the enumerator. For an example a.to_enum will yield the enumerator and you can iterate it from there like a.to_enum.each{|x| p x}.

    Or without loop, you can take the element like

    p a.to_enum.next