Overview
What is React?
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These are the interview practice questions from the legacy versions of Frontend Hire. Only the ones with a video solution are available. Moving forward, we won't be releasing more questions as this is not our strongest content.
A standard interview question used as a warm-up for the rest of the interview.
Of course, there are various answers to this question. But this is usually a warm-up question in most interviews so keep the answer short and to the point.
Answer
It is an open-source JavaScript library for building user interfaces. React enables a strong composition model, which allows you to build complex UIs out of simple components.
Follow Up Questions
Open Source? Isn't React owned by Facebook/Meta?
Yes, it was developed by Facebook/Meta to solve their problems. But they made it open-source and is maintained by Meta and a couple of other companies and individual developers.
What is a component?
The way we like to answer this would be to use the platform you are interviewing on to describe the UI and talk about the components.
A component is a reusable UI element that can be reused across your application. An example would be a button or a card.
What do you mean by a "strong composition model"?
Again, use the platform you are interviewing on to describe the UI and try to look for a component that is composed of other components.
The strong composition model is a design pattern that allows you to build complex UIs out of simple components. Something like Lego blocks. For example, a card can be composed of a header, a body, and a footer. Another example would be a text input, which can be composed of a label and an input.
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GreatFrontEnd has better questions!
We don't create questions because GreatFrontEnd already has the best possible library of questions and we recommend the same to our community.
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