type-challenges-solutions/en/medium-lastindexof

[utterances-bot]

LastIndexOf

This project is aimed at helping you better understand how the type system works, writing your own utilities, or just having fun with the challenges.

https://ghaiklor.github.io/type-challenges-solutions/en/medium-lastindexof.html

[zcfan]

There is not built-in Equal in TypeScript. I believe you're talking about the imported one from @type-challenges/utils?

[ghaiklor]

Yeah, I guess. I don't remember why I used it, but it is definitely against the rules here :)

However, implement Equal on our own should not be a problem. Seems like a couple of conditional types or maybe single one is enough.