Comments (7)
Yeah, that's exactly what I had in mind for useMemo.
from react-hooks-global-state.
Option 1: we rotate the index. % 31
Option 2: we use multiple contexts for each 31 items.
Option 3: multiple contexts for each items. Do not rely on observedBits
from react-hooks-global-state.
Assuming you abstract the implementation away from the user, I guess the decision criteria are (?)
- Potential high overhead or general “misuse” of the react context feature if potentially hundreds of contexts are created as with option #3
- Rendering efficiency of the app to the extent that with #1, some components will undesirably receive a state change when an overlapping index has changed
I don’t know enough about the implementation of Context in the react codebase to know if #1 is a concern.
It’s still not clear to me how we may subscribe to deep state or if that is even desirable considering we can receive a state change for the high level state but avoid re renders using things like memo() for functional components and useMemo for computed values.
from react-hooks-global-state.
Thanks. I'm not sure either how much overhead creating hundreds of contexts leads.
Another concern is whether observedBits
will ever be official...
BTW, https://github.com/dai-shi/react-context-global-state is already taking the Option 3 approach.
from react-hooks-global-state.
but avoid re renders using things like memo()
something like this?
11_deep / Person.tsx
const PersonFirstName = () => {
const [value] = useGlobalState('person');
const { firstName } = value;
return useMemo(
() => (
<div>
First Name:
<TextBox text={firstName} />
<input
value={firstName}
onChange={setFirstName}
/>
</div>
),
[firstName]);
};
from react-hooks-global-state.
Option 4: we pass non-updating "store" in the context, and let hooks subscribe for key-based changes. This is mostly like the previous implementation which requires useState
.
from react-hooks-global-state.
Turns out that the current implementation already takes the option 1 approach.
I keep it as is, otherwise the library implementation gets much bigger.
This limitation should be clearly noted in README.md.
from react-hooks-global-state.
Related Issues (20)
- getGlobalState should not be used in render HOT 5
- Error calling createStore (Typescript 3.6.4) HOT 2
- Question: how do developers use this library? HOT 1
- Please add CHANGELOG for 0.17.0 HOT 1
- getGlobalState loses sync with useGlobalState after 0.17 HOT 8
- How to use Redux Devtools Extension HOT 3
- comparison to react-tracked and initial values for a state HOT 9
- Error: You cannot use <GlobalStateProvider> more than once. HOT 5
- How to separate reducer and Action Type then call it to combineReducers (Ex: 07_middleware) HOT 3
- Offline saved data for React Native HOT 11
- Be able to access multiple state keys with a single hook HOT 3
- Mocking useGlobalState with jest? HOT 8
- Restoring initial state from localStorage, if any? HOT 10
- global state not preserved with Fast Refresh HOT 2
- Argument of type '"cart"' is not assignable to parameter of type 'never' HOT 5
- Asynchronous initial state HOT 4
- Is it possible to change a value outside a component? HOT 2
- Persistence with createGlobalState HOT 6
- How to easily reset state? HOT 1
- How to update the state in Bulk ? HOT 3
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from react-hooks-global-state.