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Graph/unstable-selector-subscriptions

Pattern

Unstable Selector Subscriptions

unstable-selector-subscriptions

A recurring re-render/missed-update problem where Zustand selectors return new references or rely on nested Immer updates without correct equality, causing infinite loops or stale UI until shallow comparison and proper mocking are applied.

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Public graph metadata

Updated4/30/2026

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30 linked nodes

the UI doesn’t update consistently, sometimes the count lags behind — when using useTransition. Tension: especially after fast re-renders or route changes. Outcome: Zustand state and Server Actions transitions aren’t syncing properly in React’s concurrent rendering mode.

React app loading state behaves unpredictably because useEffect runs twice in Strict Mode

I'm building a Next.js 14 app that uses Zustand with the persist middleware to store authentication tokens and user info. Tension: authenticated pages redirect me to /error/unauthorized. Outcome: React has detected a change in the order of Hooks...

Initializing a Zustand store with data fetched asynchronously from an API is messy when using a separate init() function, requiring extra state like isInitialized to prevent subscribers from running too early. The store creation function cannot be async, so awaiting fetches during createStore is not possible.

subscribeWithSelector() call in a slice setup triggers a TypeScript error about missing the store argument

getMessages(channelId) causes an infinite loop when used in Zustand selector

React throws "Invalid hook call" when Zustand hooks are accessed via an Inversify-injected service (TypeScript) outside of a React component.

How can I subscribe / unsubscribe to a Zustand nested object store? — I have a Zustand store as follows:. Tension: subscribe / unsubscribe to a Zustand nested object store. Outcome: You can use the `subscribeWithSelector` middleware.

When using Zustand with the devtools middleware, only one store’s actions/state could be inspected at a time in browser DevTools despite creating multiple stores. Additional imports of alternative devtools middleware options did not enable multiple stores to appear.

A TypeScript error occurs when using Zustand's persist middleware with a custom StateCreator, stating that a StateCreator argument is not assignable to the expected StateCreator type due to mismatched $$storeMutators typing.

Updating an input causes the entire React app to refresh/re-render, even though only part of the Zustand state should change.

@ts-check with Zustand slices and JSDoc does not type-check the bound store correctly

The user tries to mock a Zustand store (state values and actions) in a Jest test file but fails to override the store used by the React component. As a result, the component does not receive the mocked state/action implementations.

Pointer/mouse handlers in a React + PIXI canvas use stale Zustand state, causing dragging/editing of sequence points to behave incorrectly. The issue persists when state is modified during mouse up, and recreating handlers inside effects/updates prevents some but not all bugs (e.g., cannot drag twice).

After migrating to React 18, dynamically importing a language-specific component with React.lazy based on a zustand state variable causes the component to infinitely render/loading.

A Zustand store updates a `time` value every second via `setInterval`, but child components that consume the store do not re-render to reflect the updated time.

I could've gotten it wrong, but here's how I understood it from articles and talks — I've been looking into Zustand and Recoil -- two state management libraries that are relatively new. Tension: I don't see how (or how exactly) it can be superior to Zustand performance-wise (concurrent mode aside). Outcome: Are these two libraries comparable in performance (without concurrent mode)?

Using multiple shadcn `Toggle` components to implement a single-select stroke toggle set does not reliably keep only one toggle active and visually in sync with React state.

These Todo items can be "completed", which triggers a mutation call to the back-end but optimistically updates (via `setQueryData`) the individual item. Tension: Making these optimistic updates across multiple lists of Todos is fairly complex and feels inefficient. Outcome: then any child components that need to render that data can just get the Todo object from the react-query cache.

Using a Zustand store to control TanStack Table v8 state causes errors because the table calls change handlers with an updater function, but the store setters only accept raw values.

In a React/Framer Motion collapsible sidebar, the icon inside a memoized `SidebarItem` visually re-renders whenever `is_expanded` toggles, even though the icon prop itself is static and memoized. Console logs confirm the icon/component re-render occurs on expansion state changes.

A React component throws an occasional “hydration error” when rendering a nested list (a div inside a div) that maps over fetched data. The error appears inconsistently because the markup differs between server-rendered HTML and client-rendered HTML.

In a React-Redux setup, a Player component needs to read a specific entry from an array in the Redux state using an index that is supplied via props or component state. The question is whether passing a dynamic variable index into a useSelector selector function violates the expectation that selector functions are pure.

A reselect selector that returns a combined wallet object (wallet + computed balance) causes React components to rerender on any Redux state change, even when the selected data did not change.

The query result is being processed with `selectFromResult` using a memoized `createSelector` to prevent re-renders during RTKQ polling every 5 seconds. The question is whether this selector approach is correct and properly prevents unnecessary component updates.

The user needs to trigger the same side-effect twice: once when certain Redux state values change and again when a specific async action is fulfilled. Attempts to combine a state-change `predicate` with an action-based `actionCreator` into a single listener did not work.

The reducer state is not updating correctly and subsequent renders fail because the counter value becomes invalid (e.g., NaN) instead of changing from its initial value.

Clarify whether Reselect selector memoization should recompute when an input selector returns an object (e.g., `state.a`) for `selectA1`. The question is whether `a => a.first` runs every time due to `===` checks on objects.

useSelector returns the slice's initialState through the reducer path

These functions are get re-created, causing memoized children to re-render unnecessarily. — I have a dashboard with many components, and i try to pass functions as props to deeply nested children. Tension: Every time a parent re-renders, these functions are get re-created.

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