[Andarist]

No description provided.

[Netail]

Will break mutable arrays tho, in case we need to filter later again

[Andarist]

both are OK:

type Formatter = "dprint" | "deno" | "oxfmt" | "biome" | "prettier";

declare function test(options: { formatters?: readonly Formatter[] }): void;

declare const ro: readonly Formatter[];
declare const mutable: Formatter[];

test({
  formatters: ro, // ok
});
test({
  formatters: mutable, // ok
});

Internally we can always make a copy if needed, we shouldn't mutate the input array anyway.