[tym0]

Using a bool instead of empty struct also means that there is more way to use it wrong: check the bool instead of if the key exist, set the bool incorrectly, etc...

I would argue using bool hurts readability more.

Even better write/use a simple library that calls things that are sets `Set`.

[Joker_vD]

I could've sworn we got "sets" in the Go's standard library along with the "maps" module but... apparently not? Huh.

[kevindamm]

Almost made it into 1.18 but looks like it doesn't add enough value and has some open questions like what to use for a backing data type and what complexity promises to make.

https://github.com/golang/go/discussions/47331

[vips7L]

Honestly insane in 2025 to not have a generic Set.

[frou_dh]

e.g. https://pkg.go.dev/github.com/zyedidia/generic/mapset