String Deduplication on the Type Level
Solving the classic string deduplication algorithm entirely within TypeScript’s type system using literal string types and recursive type manipulation.
Solving the classic string deduplication algorithm entirely within TypeScript’s type system using literal string types and recursive type manipulation.
TypeScript 4.1’s variadic tuple types enable building complex type-safe data structures through method chaining, where each operation expands the chain’s type signature at compile time.
Exploring how to enforce type constraints across function maps in TypeScript, where every function must accept a specific parameter type.
TypeScript’s type predicates can modify the type of this
itself, enabling self-modifying type behavior that approaches dependent types. By implementing is<K extends keyof ShapeTypes>(type: K): this is ShapeTypes[K]
on abstract classes, we achieve compile-time type narrowing where shape.is('circle')
transforms the shape
variable’s type from Shape
to Circle
, unlocking properties like shape.radius
within conditional blocks.