Comments (6)
Can you please make a minimal reproducible example?
from react-redux.
To clarify,
Connect.prototype.shouldComponentUpdate = function shouldComponentUpdate(nextProps, nextState) {
return !_utilsShallowEqual2['default'](this.state, nextState);
};
is not a problem. The props you pass will end up in connector's state, so we can only compare state.
from react-redux.
Issue was that my deep object was still being referenced, correct reducer needed to be:
case constants.FORM_FIELD_UPDATE:
_.set(state.values, action.keyPath, action.value);
_.set(state.errors, action.keyPath, action.errors);
return {
...state,
values: {...state.values},
errors: {...state.errors}
};
Apologies for false alarm.
from react-redux.
This is not a correct solution, it just works around the problem. Don't use _.set
if want immutability :-). That's just asking for trouble.
You are still mutating the state
given to you. This is wrong. It happens to work, but it negates many benefits of Redux (support for DevTools, record/replay, etc). Do not do this.
from react-redux.
Your proposed solution only works one level deep. If you subscribe to state.form.values.something
, it will break again. Please don't use _.set()
. It's not the tool for the job.
Consider using something like https://github.com/substantial/updeep or Immutability Helpers instead of _.set
. Otherwise you'll spend hours chasing weird bugs because _.set
updated something deeply but there reference stayed the same.
from react-redux.
Thank you @gaearon.
from react-redux.
Related Issues (20)
- TypeError: dispatcher.useSyncExternalStore is not a function HOT 1
- where development or production mode should be specified? HOT 7
- After some time useSelector stops doing re-renders HOT 8
- Provider properties for dev checks to be passed explicitly to new devModeChecks property HOT 7
- Getting Syntax error for react-redux when building project HOT 4
- Connect not working with detox envinronment HOT 2
- Getting issue in middleware of configureStore when update redux-toolkit to 2.0.1 HOT 1
- useDispatch() causing unexpected navigate back to previous screen HOT 3
- Single global store and two Provider occurs an error for microfrontend app HOT 1
- Test fail with provider in react-native HOT 3
- useSelector hook seems to break hook parsing in React Developer Tools HOT 2
- TypeScript: not possible to use a component's `store` and `context` props when wrapped with `connect` HOC HOT 2
- docs: v9.0.0 release missing information HOT 1
- Connected children components might have mapStateToProps not called HOT 18
- Website search is broken HOT 2
- Hooks API Reference uses misnamed type in the useSelector() example HOT 1
- Include UMD build artifacts for latest release HOT 2
- Unstable selectors causes infinite loop in React
- Can't NPM Install Redux with Vite React + Typescript HOT 2
- Compatibility with React 19 types HOT 3
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from react-redux.