my only experience with this being confusing is the immutable.js Map construct. https://facebook.github.io/immutable-js/docs/#/Map https://facebook.github.io/i

my only experience with this being confusing is the immutable.js Map construct. https://facebook.github.io/immutable-js/docs/#/Map https://facebook.github.io/immutable-js/docs/#/Map While this doesn't cause an immense amount of confusion, it does throw me every once in a while.