OptiSol Business Solutions Private Limited Frontend Developer ReactJS interview questions

Round 1 Basic questions on HTML,CSS, Javascript, react, redux, Example: 1. What are semantic tags in HTML?..... 2. What is the difference between hidden and visibility none in CSS property 3. Some array method realated questions 5. React what is react ? Why we are using react ? What is virtual DOM, different between function and class component and lifecycle hooks..... 6. What is the use of redux , explain about the redux like what is reducer, action, dispatch.... Round 2 1. They give two application designs in Adobe XD we need completed the tasks within the given 2 days using react and bootstrap for me they are giving one crud application design and one landing page design. Round 3 This round also the technical quiz round they are asking indepth concepts in javascript Ex: closure, higher order function. What this the difference between javascript and typescript, explain abou redux global state management...... Round 4 This round common HR questions, how will you handle the critical situation happened in you project like that, what is your strength and weakness like that... After completed the all four rounds finally I got the offer letter 😀