discussion on how we can use statistical methods to measure and improve the efficacy of http://freeCodeCamp.com
@evaristoc Thats actually not a set. Thats a list. You could make that a set using
{...} instead of [...]using a list instead of a set makes that lookup O(n) instead of O(1) so thats probably a significant difference.
@dting yes, thanks for the correction! I was trying to say the set of punctuation marks...