If you know the depth of javaScript and you have problem-solving skills you are able to clear it. 30 Min interview JavaScript question: 5 to 10 questions basic, Medium, advanced how does JavaScript Work? promises, async, await, and many differences based on questions like diff b/w slice & splice. map & forEach. the interviewer asked 2-3 javaScript programming implementation-based questions. you have to share your screen and implement. sort, filter, map-based question in 10 to 15 min. difficulty is Easy. React Code-based questions mostly have to implement reusable code.