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Comment by wood-porch

8 months ago

Will this correctly retrieve 0 values? AFAIK 0 is falsey in Ruby

``` return nil unless entry ```

3 comments

wood-porch

Reply
chowells  8 months ago

No, Ruby is more strict than that. Only nil and false are falsely.

  • wood-porch  8 months ago

    Doesn't that shift the problem to caching false then :D

    • RangerScience  8 months ago

      you can probably always just do something like:

        def no_items?
    !items.present?
  end
  
  def items
    # something lone
  end

  memoize :items, ttl: 60, max_size: 10`

      just makes sure the expensive operation results in a truthy value, then add some sugar for the falsey value, done.