Animation in React — React Technical Interview Questions & Answers

Animation in React

Animation in React

  • Start with CSS: toggle a class, transition opacity/transform. That’s enough for toasts and accordions. Framer Motion / react-spring when you need layout animation or exit transitions. Don’t open with a 40kb animation library in a fresher viva.
  • Animation in React — show true → toast in (CSS transition). Don’t start with a heavy animation library in viva.

Technical Interview Tip: CSS first. Library when layout moves.

Code Examples for Animation in React

Example

// Animation
export default function Toast({ show }) {
  return <p className={show ? "toast in" : "toast"}>{show ? "Saved" : ""}</p>;
}

Animation in React — show true → toast in (CSS transition). Don’t start with a heavy animation library in viva.

How to Explain Animation in React to an Interviewer

Explain Animation as if you are teaching a junior — definition, then one tiny UI.

CSS class + transition. Motion / spring.

Write 5–10 lines that use Animation and say what the UI does.

Show JSX Say the screen

What mistake do freshers make with Animation?

library for a fade-in.