Please also look at my idea how to rewrite the code for readability using `deferred` pattern: https://news.ycombinator.com/item?id=16933983 https://news.ycombin

Please also look at my idea how to rewrite the code for readability using `deferred` pattern: https://news.ycombinator.com/item?id=16933983 https://news.ycombinator.com/item?id=16933983