Data validation using immutable data structures
A manageable and immutable validation library.
Immutable Data Collections
Check the immutability of TypeScript types
PropType validators that work with Immutable.js.
redux-immutable is used to create an equivalent function of Redux combineReducers that works with Immutable.js state.
a date and time library for javascript
A bunch of reactive utility types and functions, for building primitives with Solid.js
Immutable ArrayBuffer (the shim!)
Immutable JSON patch with support for reverting operations
Immutability helpers with fast reads and acceptable writes
React PureComponent implementation embracing Immutable.js
Modify deep object properties without modifying the original object (immutability). Works great with React and Redux.
Serialize unserializable data and parse it back.
Immutable data structures for JavaScript which are backwards-compatible with normal JS Arrays and Objects.
A JavaScript library for efficient immutable updates
Wrap zod validation errors in user-friendly readable messages
Decorator-based property validation for classes.
Internationalized calendar, date, and time manipulation utilities
Chrome Dev Tools formatter for the Immutable JS library
React JSON Viewer Component, Extracted from redux-devtools
Immutable finite list objects with constant-time equality testing (===) and no memory leaks
Collection of utility function for use with Draftjs.
Immutable version of dot-prop with some extensions
This gem provides immutability validation. This is different from `readonly: true` stuff because it sets the error.
A Rails validator for immutable attributes.
Validations for immutable Ruby objects
Validations for making ActiveRecord objects immutable.
Thread-safe immutable objects that provide delegation and basic validation to hashes.
Generates modules that provide conventional value semantics for a given set of attributes. The behaviour is similar to an immutable `Struct` class, plus extensible, lightweight validation and coercion.
Define data classes with typed fields, default values, validation rules, and pattern matching support. Immutable by default with keyword-only construction, JSON/Hash serialization, and runtime type checking.
GuideRail transforms various data sources into safe, immutable `Data` objects. By leveraging the robust validation capabilities of `dry-schema`, it provides a clear and declarative way to define, validate, and instantiate your data structures.
A Ruby gem for parsing skill files that use YAML frontmatter and markdown body content. Provides document splitting, YAML parsing, schema validation, and returns immutable Skill objects. Designed for agent/AI systems where skills are defined as structured markdown documents with metadata.
A clean, immutable Ruby interface for working with piece identifiers in PNN format. PNN provides a consistent and rule-agnostic notation for representing pieces in abstract strategy board games like chess, shogi, and xiangqi. Features include state modifiers for enhanced/diminished/intermediate pieces, ownership changes, and comprehensive validation. Perfect for game engines, analysis tools, and educational applications.
A Ruby library for terminal text styling with ANSI colors and effects. Provides an elegant, functional API with immutable style objects that can be composed using the >> operator. Supports standard colors, hex values, and comprehensive text effects including bold, faint, italic, underline, overline, blink, inverse, and concealed text. Features type-safe argument validation using dry-schema and dry-types.
Parse and generate Portable Action Notation (PAN) strings for representing atomic actions in abstract strategy board games including chess, shogi, xiangqi, and others. PAN provides an intuitive operator-based syntax with six core operators: "-" (move to empty square), "+" (capture), "~" (special moves with side effects), "*" (drop to board), "." (drop with capture), and "=" (in-place transformation), plus "..." (pass turn). Supports coordinates via CELL specification and piece identifiers via EPIN specification. Handles transformations ("e7-e8=Q"), enhanced/diminished states ("+R", "-P"), and style derivation markers ("K'"). Provides comprehensive validation, immutable action objects, and functional API design. Examples: "e2-e4" (move), "d1+f3" (capture), "e1~g1" (castling), "P*e5" (drop), "e7-e8=Q" (promotion), "..." (pass), "+d4" (static capture), "e4=+P" (modify).
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