#State

34 questions

What is the difference between props and state?React#stateJunior
How does useContext and the Context API work?React#stateMiddle
What does "lifting state up" mean, and how does it relate to prop drilling?React#stateMiddle
How do you choose a state management approach in React?React#stateSenior
How does state management with Pinia work?Vue.js#stateSenior
How does state management with NgRx work?Angular#stateSenior
What is state in a frontend application?State Management#conceptsJunior
What is the difference between local and global state?State Management#conceptsJunior
What does "single source of truth" mean?State Management#conceptsJunior
Why is immutability important in state management?State Management#conceptsJunior
What is prop drilling and how do you avoid it?State Management#conceptsJunior
What does lifting state up mean?State Management#conceptsJunior
What is the difference between state and props?State Management#conceptsJunior
What is derived state and why avoid duplicating it?State Management#conceptsJunior
Why distinguish UI state from server state?State Management#conceptsJunior
When do you actually need a state management library?State Management#conceptsJunior
What is the Flux architecture?State Management#patternsMiddle
What are the core concepts of Redux?State Management#reduxMiddle
What are actions and reducers, and why must reducers be pure?State Management#reduxMiddle
What are selectors and memoization in state management?State Management#reduxMiddle
What is middleware in Redux and how do thunks work?State Management#reduxMiddle
When is Context a good state solution and when not?State Management#patternsMiddle
What is state normalization?State Management#patternsMiddle
How do you model async/loading state?State Management#conceptsMiddle
What are state machines and when do they help?State Management#patternsMiddle
How do lightweight stores like Zustand and Jotai differ from Redux?State Management#librariesMiddle
What does Redux Toolkit (RTK) provide over classic Redux?State Management#reduxSenior
Why use a server-state library like React Query?State Management#librariesSenior
What are optimistic updates and how do you implement them safely?State Management#patternsSenior
What is the atomic state model (Jotai/Recoil)?State Management#librariesSenior
How do you persist and hydrate state?State Management#patternsSenior
How do you decide where each piece of state should live?State Management#conceptsSenior
How does MobX's reactive state model differ from Redux?State Management#librariesMiddle
What is the publish/subscribe pattern for state, and its trade-offs?State Management#patternsMiddle