In the 2019 developer survey, Stack Overflow noted that React is still among the most popular JavaScript libraries to date. React has exploded in popularity because its simple and declarative API produces highly-performant applications — and that momentum only continues to grow.
If you’re looking to build a robust web application, chances are that React may be a good fit for you. Once you're ready to hire a React developer, here are essential interview questions to ask and some advanced concepts to know.
A Word on Technical Interviews
Before we dive right into the React Interview questions, it needs to be said that technical interviews are notorious for gotcha-style questions and irrelevant whiteboarding exercises. This article avoids that interview style entirely — rather, I outlined five general (yet vital) concepts which I believe any seasoned React developer should know.
Over the years, I have been in countless interviews as both the applicant and the conductor. My experience has taught me that the best candidates for an engineering role are those who can articulate intelligent opinions and defend them using examples from their own experience. Pair-programming relevant examples as a follow-up to the discussion would be my preferred interview format, but we will stick to the Q&A portion for this article.
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