> ## Documentation Index
> Fetch the complete documentation index at: https://docs.typesafe.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Type Alias: ScoreOf<T>

```ts theme={null}
type ScoreOf<T> = T extends readonly unknown[] ? number extends T["length"] ? number : Extract<keyof T, `${number}`> : Extract<keyof T, number>;
```

Score keys inferred from the rubric; tuple keys are numeric strings, map keys are numbers.

## Type Parameters

### T

`T` *extends* [`ScoreCriteria`](/sdk/javascript/api/type-aliases/ScoreCriteria)