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tcomb is a JavaScript library for defining and checking runtime types in Node.js and browser environments. It gives developers a concise syntax for modeling values, structures, interfaces, enums, unions, refinements, and other domain-level constraints. The library is useful in JavaScript projects where static type information is unavailable or insufficient at runtime. It can validate external inputs, document data expectations, and support safer programming patterns without requiring a full type system migration. tcomb also serves as the foundation for related projects such as tcomb-validation and tcomb-form. Its main value is bringing lightweight, expressive runtime type modeling to JavaScript applications.
Features
- Runtime type checking for JavaScript
- Support for structs, lists, enums, unions, and refinements
- Works in Node.js and browser environments
- Concise syntax for domain model definitions
- Foundation for tcomb-validation and tcomb-form
- Useful for validating external or uncertain data
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MIT LicenseFollow tcomb
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