Front End Development Frameworks & State Management Flashcards
6 cards from real Front End Development practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Front End Development Frameworks & State Management flashcards as text
Which React hook is used to perform side effects like data fetching in functional components?
Answer: useEffect
The useEffect hook runs side effects (data fetching, subscriptions, DOM manipulation) after render, optionally cleaning up on unmount.
In Vue 3, what replaces the Options API for organizing component logic?
Answer: Composition API
Vue 3's Composition API uses setup() and composable functions to organize component logic by feature rather than option type.
What is the purpose of React's useCallback hook?
Answer: Memoizes a callback function to prevent unnecessary re-creation on re-renders
useCallback returns a memoized version of a callback that only changes if its dependencies change, preventing unnecessary child re-renders.
In Angular, what decorator is used to define a component?
Answer: @Component
The @Component decorator marks a class as an Angular component and provides metadata like its template, styles, and selector.
What does 'prop drilling' refer to in React applications?
Answer: Passing props through multiple nested components just to reach a deeply nested child
Prop drilling occurs when props must be passed through several intermediate components that don't need them, just to reach a deeply nested component.
Which tool is most commonly used to scaffold a new React project with zero configuration?
Answer: Create React App or Vite
Create React App (CRA) and Vite are popular zero-config tools that scaffold a ready-to-use React project with bundling and dev server configured.
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