reduxjs/reselect

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.

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