Why do i have duplicate diagnostics in my code? Editor: Neovim

[split trench]

the first one is from typescript-eslint via eslint
the second is from the typescript compiler

see typescript-eslint/no-unused-vars

[split trench]

yes

[lament basin]

either disable the noUnusedLocals compiler option or the eslint rule that Chris pointed out

fair enough, but it'd annoy me ¯_(ツ)_/¯

why though? it's easy to fix, like i said. just remove that line from your tsconfig.json (at least that's the way i'd go, since the eslint rule is more powerful and flexible)

no reason to have two tools checking the same thing (and IMO lint rules like that shouldn't be the compiler's job anyway)

what do you mean by this? can you show another example?

yes, but they generally provide different diagnostics. except in this specific case where you're checking for unused locals with both tools

are there other kinds of warnings that you see twice?

[split trench]

@last ledge read the explanation in this link please

that disables the base eslint rule (which isn't typescript-aware) and enables the matching typescript plugin rule