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Redux cheat sheet & developer notes

Redux cheat sheet and 2 curated developer notes — core concepts, patterns, and interview prep. Maintained by the DevRecall team.

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Store, Slices & Redux Toolkit

Store, Slices & Redux Toolkit. createSlice & configureStore. import { createSlice, configureStore } from '@reduxjs/toolkit'; const todosSlice = createSlice({ name: 'todos', initialState: [], reducers: { // Looks like mut…

Async Logic, Selectors & Performance

Async Logic, Selectors & Performance. Async Logic with Thunks. import { createAsyncThunk, createSlice } from '@reduxjs/toolkit'; // A reducer must be a pure, synchronous function — async logic can't fit // that contract,…

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Concepts to know for Redux

Memoization in React: memo, useMemo, useCallbackWhy React re-renders a whole subtree, why a new object or function each render defeats React.memo, when memoizing pays off, and what the React Compiler changes.Intermediate·13 min State Management Trade-offs in Frontend AppsSort state by where it belongs before picking a library: server cache, URL, form, local UI or shared store, and why Context re-renders every consumer.Intermediate·14 min Optimistic UI: Updating Before the Server AnswersShow the result of a click before the server confirms it, then reconcile or roll back. Which actions suit it, and how to survive races, refetches and retries.Intermediate·12 min

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Accessibility Alpine.js Angular Ant Design AppKit Astro Axios Babel Blazor Bootstrap CSS Modules Chakra UI

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