type-collections

Utility types that manipulate different kinds of type-level collections

Installation

yarn add -D type-collections

Usage

// We only offer types. You are recommended to use `import type`
import type { U2I } from "type-collections";

type A = U2I<{ a: 1 } & { b: 2 }>;

APIs

• U2I<U>
• U2T<U>
• T2U<T>
• U2P<U>
• Join<Arr, Sep?>
• Split<S, Sep?>
• FromEntries<KV>
• Entries<O>
• KeyUnion<O>
• Tuple<L, T?>
• Length<T>