Q66: What are Variadic Tuple Types?
Variadic tuple types allow spread operations (...T) inside tuple type definitions, enabling typed tuple composition.
Tuple Spread Composition
type Strings = [string, string];
type Numbers = [number, number];
type Concat = [...Strings, ...Numbers]; // [string, string, number, number]💡 Spreads existing tuple types to compose new combined tuple types.
Key Takeaways
- Enables strongly typed function rest parameter composition.