Even without classes there are a ton of footguns involving ‘this’ and method scope. Fat arrow notation papered over a bunch of issues. But I have lost more than

Even without classes there are a ton of footguns involving ‘this’ and method scope. Fat arrow notation papered over a bunch of issues. But I have lost more than a few hours confused as to why changing between map and a loop completely broke/fix behavior. Or seen codebases absolutely peppered with unneeded ‘bind(this)’ like it would ward off evil. I had to spend some time studying before I really grokked it.