ts-toolbelt is a collection of specialized utilities for manipulating and validating TypeScript types. It provides a toolkit for performing complex transformations on objects, unions, and functions to enforce strict data consistency at compile time. The library features dedicated transformers for function types, including utilities for currying, composition, and signature extraction. It also includes an object type manipulator for deep merging, patching, and reshaping complex structures. The capability surface extends to literal string processing, type-level arithmetic, and tuple operations.
This is a TypeScript utility type library providing advanced type aliases and mapped types for complex object and union transformations. It implements specialized tools for creating branded nominal types, extracting type metadata, and performing set operations on union types. The project distinguishes itself through a toolkit for recursive object transformations, allowing for the application of property constraints like read-only or optional status across deeply nested structures. It also provides a system for computing intersections, differences, and complements between union types to simula
This project is a comprehensive guide and educational resource for the TypeScript language. It covers the fundamental principles of the language, including its structural type system, static type analysis, and the process of transpiling typed source files into JavaScript. The material details how to model complex data and reusable type logic using generics, conditional types, and mapped types. It also explains the use of declaration files to provide type safety for external JavaScript libraries and the integration of type checking into existing JavaScript projects via JSDoc annotations. The
type-fest is a library of reusable utility types for performing complex transformations and validations on objects, arrays, strings, and numeric ranges in TypeScript. It provides a collection of type definitions designed to handle advanced structural changes and constraints. The project distinguishes itself by offering specialized logic for string literal processing, such as casing transformations and pattern-based modifications, and type-level arithmetic for calculating numeric ranges and absolute values. It also includes utilities for enforcing deep immutability, ensuring union mutual exclu
ts-essentials is a comprehensive toolkit of utility types and libraries for TypeScript, providing advanced primitives for recursive structural transformations, runtime assertions, and type guards. It serves as a utility library for performing complex type-level programming to ensure stronger type safety and reduce boilerplate.
The main features of ts-essentials/ts-essentials are: Utility Type Definitions, Type-Level Programming Utilities, Type Transformations, Readonly Property Declarations, Type-Level Optionality Modifiers, Property Modifier Transformers, Required Property Marking, Deep Immutability Enforcements.
Open-source alternatives to ts-essentials/ts-essentials include: millsp/ts-toolbelt — ts-toolbelt is a collection of specialized utilities for manipulating and validating TypeScript types. It provides a… piotrwitek/utility-types — This is a TypeScript utility type library providing advanced type aliases and mapped types for complex object and… microsoft/typescript-handbook — This project is a comprehensive guide and educational resource for the TypeScript language. It covers the fundamental… sindresorhus/type-fest — type-fest is a library of reusable utility types for performing complex transformations and validations on objects,… gibbok/typescript-book — The Concise TypeScript Book: A Concise Guide to Effective Development in TypeScript. Free and Open Source. samchon/typia — Typia is a compile-time code generator that transforms TypeScript type annotations into runtime validation,…