This release improves behavior in useSelector by returning the existing reference if the newly returned selector result passes the equality check, and adds a hard dependency on the @types/react-redux package to ensure TS users always have the typedefs installed.
Changes
useSelector Results Reuse
Issue #1654 reported that useSelector was returning new references from a selector even if the equality comparison function returned true. This is because the equality check was only ever being performed during the action dispatch process.
We now run the equality comparison against the value calculated by the selector while rendering, and return the existing reference for consistency if the old and new values are considered equal. This should improve some cases where further derived values where being recalculated unnecessarily.
TS Types Now Included
React-Redux has always been written in plain JS, and the typedefs maintained by the community in DefinitelyTyped. We plan on eventually rewriting the library in TypeScript in a future React-Redux v8 release, but until then the types can stay in DT.
However, having to always manually install @types/react-redux is annoying, and some users have gotten confused by that. This release adds a hard dependency on @types/react-redux, so that if you install react-redux, you automatically get the types as well. This should simplify the process for TS users.
Docs Updates
We've made several docs updates recently:
Renamed "Quick Start" to "Getting Started" and "Static Typing" to "Usage with TypeScript"
Dropped the docs API versioning setup, as the legacy API version docs pages were rarely viewed and the versioning setup confused docs contributors
Moved the old "Intro > Basic Tutorial" to "Tutorials > Connect" and marked it as semi-obsolete
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Bumps react-redux from 7.2.2 to 7.2.3.
Release notes
Sourced from react-redux's releases.
Commits
a87cd5f7.2.3da22052Automatically install @types/react-redux as a dependency (#1699)65b4a16Reuse latest selected state on selector re-run (#1654) (#1660)3aa8993Use useIsomorphicLayoutEffect in Provider for consistency (#1683)86b6fe0Additional TS usage updates (#1698)9005c4aDrop versioned docs entirely (#1696)45dfd45Assorted docs cleanup (#1688)a923553Added translation section to docs version 7.2 (#1676)80f8fe1added docs translations section in quick start (#1675)96bf941Link directly to #redux on Reactiflux (#1673)Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
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