Ruby quiz (intermediate) #1

question mark

Question

write code so that you would add some scrolling behavior using the decorator pattern, in two flavors:

  • instance-specific (adding behavior to a specific instance)
  • class extension (adding behavior to all future instantiations)

with the following code:


 

Solution

produces:

kind of Scrollable? false
kind of Scrollable? true
kind of Scrollable? true
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