React Interview Questions

15 real React questions asked in live technical interviews — each with a model answer. Updated weekly.

🎤 Auto-captured by Assisting AI during live interviews

These React interview questions were captured from real interviews by candidates using Assisting AI. Each links to a full model answer. For real-time help during your own interview, get Assisting AI from ₹500/day.

Analyze this screenshot: extract all visible content exactly—tables as markdown, code as-is, diagrams as described components and connections, UI elements as listed, and text as quoted. The screenshot contains a React, Redux, and TypeScript application.🟡 Medium · Other · Asked 2×What is React JS?🟢 Easy · Conceptual · Asked 1×Build an infinite scroll list in React that loads more products as the user scrolls, without clicking a next page. Ignore CSS; focus on functionality.🟡 Medium · Coding · Asked 1×What is the output of the following React component?🟢 Easy · Conceptual · Asked 1×One issue is that we are using 'm' but not passing any value to it.🟡 Medium · Debugging · Asked 1×We are designing a bot component that will be used by 15 teams. What considerations and decisions should we take from the perspective of component APIs, props, composition, accessibility, and theming?🟡 Medium · Conceptual · Asked 1×What architectural design considerations should we make regarding component APIs, props, composition, accessibility, and theming?🟡 Medium · Conceptual · Asked 1×What different design decisions should we consider when building a reusable component?🟡 Medium · Conceptual · Asked 1×While working in React, have you encountered React error boundary messages? How do you handle them?🟢 Easy · Conceptual · Asked 1×How can you efficiently grow a particular grid in a React application?🟡 Medium · Conceptual · Asked 1×Suppose you need to display under 10,000 rows efficiently; what ways can you achieve this?🟡 Medium · Conceptual · Asked 1×How would you render the list of names in a React component?🟢 Easy · Coding · Asked 1×Why do we have to use keys in React?🟢 Easy · Conceptual · Asked 1×How do you print the array ['Ram', 'John', 'Sara'] in React?🟢 Easy · Coding · Asked 1×What is a stateless functional component?🟢 Easy · Conceptual · Asked 1×

🎤 Get React questions answered in real-time

Assisting AI listens to your interview, captures questions live, and gives you instant AI-powered answers on a discreet on-screen overlay.

Get Assisting AI — Starts at ₹500

Browse Other Topics