Enumerable#try_find - inspired by PrototypeJS Try.these

enumerable-try_find.rb

module Enumerable
  def try_find(rescue_type = StandardError)
    each do |element|
      begin
        candidate = element.respond_to?(:call) ? element.call : element
        return candidate if candidate
      rescue rescue_type
        next
      end
    end
    nil
  end
end

Example:

  [].try_find
  # => nil
  [42].try_find
  # => 42
  [->{}].try_find
  # => nil
  [->{}, 42].try_find
  # => 42
  [->{raise}, 42].try_find
  # => 42
  [->{raise}, 42].try_find(SyntaxError)
  # => raises RuntimeError