conditional-types-over-overloads

What problem does it solve?

When a function's return type depends on its input type, overloads often proliferate and become hard to maintain. Conditional types provide a single, powerful alternative that handles unions cleanly and simplifies type signatures.

Core Features & Use Cases

• Reduces overload proliferation by using a single conditional signature.
• Handles union input types and distributes over unions automatically.
• Useful for type utilities and generic functions where return types hinge on inputs.

Quick Start

Define a generic function signature using a conditional type to map each input union member to its corresponding output.