Separate lib file for the subset of es2023.array methods implemented in Node 18 and 19

[alexeyr-ci]

⚙ Compilation target

es2022

⚙ Library

["es2023"]

Missing / Incorrect Definition

See this issue tsconfig/bases#217. @tsconfig/node18 should be able to include findLast and findLastIndex while avoiding the copying methods unavailable in Node 18.

Sample Code

If tsconfig.json contains "extends": "@tsconfig/node18", code using toReversed(), toSorted(), etc. shouldn't compile but it does.

Documentation Link

No response

[RyanCavanaugh]

There's no way to tractably do this in a way that accounts for all possible runtimes' variations of support levels. If something doesn't support the full 2023 suite yet, it should be set to 2022.

[alexeyr-ci]

Could a config use its own files in lib? That would solve the problem as well.

[alexeyr-ci]

I see https://devblogs.microsoft.com/typescript/announcing-typescript-4-5-beta/#supporting-lib-from-node_modules, maybe that can work for them.