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Graph/mis-scoped-callback-signatures

AntiPattern

Wrong Scope and Signatures

mis-scoped-callback-signatures

Function and type signatures are mis-specified across boundaries—React children read outside parent scope and callbacks are typed or invoked with mismatched argument shapes—so context/functions receive unexpected inputs and TypeScript fails to constrain them correctly.

Node Details

Public graph metadata

Updated6/24/2026

Connections

30 linked nodes

MATCHESSolution

There should be 3 parameters, but 2 are obtained. ts(2554) — const useBearStore = create()( subscribeWithSelector( (set, get) => createBearSlice(set, get) // there report error ) ). Outcome: export const useStore = create()(subscribeWithSelector((...params) => ({ ...createBearSlice(...params), ...createProjSlice(...params) }))).

MATCHESSolution

Warning: 'myparam' is defined but never used. no-unused-vars — Below is my .eslintrc.js file:. Tension: ESLint's built-in `no-unused-vars` works great with JavaScript projects but not TypeScript projects (can't handle type declaration properly). Outcome: The `@typescript-eslint:recommended` preset will automatically disable `no-unused-vars` and enable `@typescript-eslint/no-unused-vars`.

MATCHESSolution

Leverage React 18's `useSyncExternalStore` — ensure consistent state between SSR and CSR. Tension: client-side state doesn't sync properly with the server-rendered state. Outcome: to ensure consistent state between SSR and CSR.

MATCHESSolution

so by wrapping components like — import dynamic from 'next/dynamic';. Tension: your child components will not use ssr. Outcome: remember to add 'use client' as well.

MATCHESSolution

I create a global error store. — I add setError in the catch block of my functions. Tension: I often use function names as scopes. Outcome: Then I can access the error msg in my components like this.

MATCHESSolution

Selector functions without dependencies other than `state` can be declared external to any component using them. — Selector functions without dependencies other than `state`. Tension: Scope wouldn't affect when or where a selector function could be used, but rather where it can be declared.

MATCHESSolution

Tension: prevents you from interact with other elements. Outcome: working playground: https://stackblitz.com/edit/stackblitz-starters-gl6ghw?description=The%20React%20framework%20for%20production&file=app%2Fpage.tsx,app%2Fglobals.css&title=Next.js%20Starter.

MATCHESSolution

Function components cannot be given refs. — when I'm trying to use this as a slot for other MUI component. Tension: Attempts to access this ref will fail. Outcome: Did you mean to use React.forwardRef()?

MATCHESSolution

Tension: despite that being what the react-query docs suggested. Outcome: This solved the type errors too.

MATCHESSolution

Wrap you components that rely on React Query data — React Query data. Outcome: with Suspense and HydrationBoundary.

MATCHESSolution

in v5 options are part of the same object — I was writing syntax according to react query v4. Outcome: Refactored the code like this.

MATCHESSolution

Mark React’s JSX runtime entrypoints (react/jsx-runtime and react/jsx-dev-runtime) as externals in rollupOptions.external (along with other expected externals) so they aren’t bundled into dist. Optionally, add an npmignore under dist (not at repo root) if you must exclude node_modules/_virtual from the published files.

MATCHESSolution

y accidentally created a `filname.d.ts` file in my repository — which seemingly caused ESLint to crash. Tension: Linting and checking validity of types .Debug Failure. No error for last overload signature. Outcome: Turns out y accidentally created a `filname.d.ts` file in my repository.

MATCHESSolution

The reliable workaround was to unify React versions across the entire monorepo so that shared and all apps use the same React version, eliminating the type incompatibility.

MATCHESSolution

Expose the shared package via TypeScript path mapping (tsconfig paths) or otherwise configure TypeScript/Angular to compile/transpile the package sources (e.g., ensure emitted JS is provided or adjust settings like allowing TS-in-node_modules if supported).

MATCHESSolution

Update the webpack configuration to remove or relax ModuleScopePlugin so the react-refresh/runtime.js module can be resolved.

MATCHESSolution

Sentry.configureScope( (scope) => scope.setUser(SentryUser(id: '1234', email: 'jane.doe@example.com')), ); — Basically you can configure the scope like this. Tension: If this is not working for you maybe a try/catch block can help you, or even log something to the console. Outcome: scope.setUser(SentryUser(id: '1234', email: 'jane.doe@example.com')).

MATCHESSolution

Look for where you are using <React.Fragment> or the shorthand <> in those files. Tension: Since I cant change the code in packages, what can I do get rid of those errors? Outcome: replace React.Fragment with an actual HTML element, such as a .

MATCHESSolution

Constrain the generic to array types (e.g., `T extends any[]` or `T extends Array<...>`) or use a specific prop type such as `ProductRow[]`, so TypeScript knows `every()` exists. Then type the callback parameter explicitly or rely on the inferred array element type to remove the `implicit any` error.

MATCHESSolution

Try doing this: — import ReactDatePicker from "react-datepicker";. Tension: (ReactDatePicker as unknown as { default: typeof ReactDatePicker }).default ?? Outcome: import ReactDatePicker from "react-datepicker";.

MATCHESSolution

fn({ a, b, ...(ctx ? { ctx } : {}) }) — when ctx may be undefined.

MATCHESSolution

A type annotation is necessary.ts(2742) — export const { useGetPokemonByNameQuery } = pokemonApi. Outcome: This is likely not portable.

MATCHESSolution

Tension: cannot itself access any Redux context because none is provided to it from higher up the ReactTree. Outcome: so it can access the provided Redux context.

MATCHESSolution

resolve npm install @reduxjs/toolkit@^1.9.6 — in my Expo project. Tension: createSlice is not a function (it is undefined). Outcome: npm install @reduxjs/toolkit@^1.9.6.

MATCHESSolution

Technically, it's not 100% free of undefined behavior. — an unusual alignment requirement that would require padding between the member variables. Tension: Nevertheless, it should be a reliable example.

MATCHESSolution

Use smaller scopes where it improves correctness (e.g., declare loop counters inside the loop, such as `for(int i = 0; ...)`), and rely on the compiler/JIT for resource efficiency; avoid broader scopes to reduce the chance of stale or invalid variable usage.

MATCHESSolution

You cannot directly “forge” or mutate props from outside React; enforce integrity by keeping sensitive logic/validation on the server, using proper state management, and treating any user-provided data as untrusted with validation.

MATCHESSolution

new Function(userCode); — verify (client-side) that the user has entered valid JavaScript code. Tension: Pulling in a Javascript parser (e.g. Acorn or Esprima) is a relatively heavy dependency. Outcome: Parsing/compiling JS code is safe and has no side effects.

MATCHESSolution

The changed code invokes undefined behaviour. — Java 25 FFM API. Tension: You can't rely on always getting this behaviour. Outcome: The caller's pointer is passed in to it, but it's never used.

MATCHESSolution

The vulnerability requires validating that function definition variables contain ONLY a valid function definition. — Bash 4.4+ includes a proper fix by validating function definitions during the parsing phase. Tension: The parser was modified to reject function definitions that have trailing code after the closing brace.

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