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reduxjs avatar

reduxjs/reselect

0
View on GitHub↗
19,032 stars·661 forks·TypeScript·MIT·22 views

Reselect

Reselect is a state management optimization tool and memoization utility designed to minimize redundant calculations and UI re-renders. It functions as a library for creating memoized selectors that derive specific data from a state store.

The library implements input-based memoization and recursive selector composition to create a hierarchy of derived data dependencies. It ensures reference-stable result caching and provides custom equality checking to determine when a cache should be invalidated.

The project covers capabilities for derived data computation, frontend performance optimization, and selector stability validation to identify unstable behavior during development.

Features

  • Memoization Caches - Caches function results and returns them if input arguments remain identical to previous calls.
  • Reference-Stable Caches - Ensures the same object reference is returned when output has not changed to prevent unnecessary downstream re-renders.
  • Composable Selector Pipelines - Implements chains of memoized selectors where downstream computations execute only when upstream dependencies change.
  • Memoization Utilities - A utility that caches expensive computation results based on inputs to optimize component lifecycles.
  • Redux Implementations - Optimizes the retrieval of data from a centralized immutable store to prevent redundant calculations.
  • State Selectors - Provides a framework for creating stable and efficient functions to extract and format state slices.
  • Derived State - Calculates new values from raw state and caches them until the underlying input data changes.
  • State Selectors - Provides a library for creating memoized selectors that derive specific data from a global state store.
  • Recursive Compositions - Allows selectors to be nested and chained together to manage complex derived data dependencies.
  • Memoized Derivations - Caches computed results and triggers recalculations only when reactive input values change.
  • Custom Memoization Rules - Allows developers to define custom equality functions to control when memoized values are invalidated.
  • Value-Based Equality Checking - Provides mechanisms to invalidate caches using structural value comparison instead of simple reference checks.
  • Frontend Performance Optimization - Reduces the frequency of expensive data transformations and UI updates through strategic memoization.
  • State Optimization Tools - Reduces redundant calculations in application state by tracking dependencies and invalidating caches only when needed.

Star history

Star history chart for reduxjs/reselectStar history chart for reduxjs/reselect

How this analysis was created: This summary and feature list were written by an AI model that read the project's README and public documentation pages. Each feature links to the documentation it came from; stars, license and language come straight from the GitHub API. The model does not read the source code, and the analysis is refreshed when the project is re-analysed. Learn more on our About page.

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Open-source alternatives to Reselect

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Frequently asked questions

What does reduxjs/reselect do?

Reselect is a state management optimization tool and memoization utility designed to minimize redundant calculations and UI re-renders. It functions as a library for creating memoized selectors that derive specific data from a state store.

What are the main features of reduxjs/reselect?

The main features of reduxjs/reselect are: Memoization Caches, Reference-Stable Caches, Composable Selector Pipelines, Memoization Utilities, Redux Implementations, State Selectors, Derived State, Recursive Compositions.

What are some open-source alternatives to reduxjs/reselect?

Open-source alternatives to reduxjs/reselect include: reactjs/reselect — Reselect is a memoized selector framework and state selector library designed to optimize performance in Redux… react-boilerplate/react-boilerplate — This is a foundational project structure for building scalable web applications using React. It provides a… ngrx/platform — This project is a state management framework for Angular applications that provides a predictable state container. It… vuejs/vuex — Vuex is a centralized state management library for Vue.js applications. It provides a single source of truth for… redux-form/redux-form — redux-form is a library for managing HTML form state and validation within a Redux store using React components. It… effector/effector — Effector is a reactive state management library designed for building complex, event-driven applications. It functions…