Back in September, I wrote this story
[https://medium.com/madhash/how-variable-types-can-determine-the-life-or-death-of-cats-in-javascript-b1cd2f50a8b1]
on var, let and the keyword this
However, some people still found it hard to distinguish between the difference —
or rather, they wanted something that was more visually accessible. So I decided
to change the format a little