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22,023 PointsUse count instead of size on /blank-slates-and-rails/markup-and-styling-the-blank-slate-part-1
This may help someone else: On Blank Slates course for Ruby on Rails, during the markup-and-styling-the-blank-slate-part-1 video, Use .count instead of .size on:
<% if @todo_lists.count > 0 %>