Symbols + Maps have some neat gotchas that are good to be aware of. For example,...

winrid on July 5, 2021 | parent | context | favorite | on: Concepts for JavaScript developers to know

Symbols + Maps have some neat gotchas that are good to be aware of.

For example, if you use Symbols as keys in an object, Object.keys() or for...of/in will NOT return/iterate over those keys. You have to use Object.getOwnPropetySymbols()...