please never repeat anything like JavaScript's truthy/falsy shorthands & implicit conversions. (i mean same with C etc., there is a long history of bad DX here.)
i feel like most everyone coding in js (that i work with, i am not at a FANG right now) are not being careful at all. it is one of the biggest footguns.
(of course if you look in the dictionary, JavaScript is defined as, "the biggest worst footgun language ever.")