Senior Frontend Developer Interview Questions 2024

Best high level touch on FE topics I've seen so far. Well done guys!

Great content.

webpack is not mandatory, Vite is used a lot now. Else great talk!

Why use Webpack? I’m literally seeing no one using it in their projects.
.vite is all over the place

This video is awesome! Just a small tip. In the question about the pure components I would suggest to explain also in terms of a pure function. A functional component with state is not a pure component

This video is awesome! Just a small tip. In the question about the pure components I would suggest to explain also in terms of a pure function. A functional component with state is not a pure component

90% of this video is a React Interview.

I've worked for a company were the code coverage was 100%. Any new feature that was introduced had to have tests, otherwise it will fail on the pipeline.

Ii shared with my friends

great content, pls create this kind of contents. it's really valuable content in entire dev community

awesome bogdan

Very valuable information. Thanks Bagdon and seniorDev

And design patterns too

amazing content

Why is this common standard? If the candidate have documented experience and education, this should not have to be "tested" again and again. The narrative as a whole is sick, and we need to start trusting people instead. You're hiring a human being, not a machine. I get that you might have questions about skills and competence if the candidate has no experience, and bare minimum education. But to treat everyone like this, is disresepectful towards those who are experienced and educated. I disagree with this entire approach as default.

Great session , preparing for an interview in 1 hour and just saw it , questions i didn't think about and make so much sense.

nice, need more vids like this. Im your follower now)

outstanding answers for the questions!

Basically, not bad, basically

I've never heard of anyone using the term "essential state" before In React. I even tried googling "essential state" and found nothing lol. I assume this question is more or less asking about being able to have computed values that rely on other state using something like useMemo or something? It's kind of a weird way to phrase the question.

The answer that was given in the video was such a non-answer as well, it was basically "essential state is state that can't go any farther". Like, what does that even mean? It can't go farther? Where is it trying to go?

Anyway, if anyone is reading this and wants to know about derived state. I think the answer given is a vague overview, but more specifically it's basically the idea of composing a value based off of existing state. You can just make a normal variable for it honestly, there's no reason why you can't. However, you can also use the useMemo hook if you need to memoize it for performance reasons. In the future with React 19, the new compiler will reduce the need to manually memoize various things like with useMemo or useCallback.

Well done video. But you should mention this is for a React Developer

In my experience I'm totally against asking for acronyms or enumerating many things like (say the patterns you know). It happened to me that many times you know how to use something but maybe you don't remember the name (like IIF). Or you use a pattern and you are unaware of its name (module pattern for example).

is this really senior level questions? where are those about type coercion, backtracking, event loop, generator functions, inheritance etc?

More of like the candidate is holding a guest lecture and the interviewer is clearing his doubts 😅

crazy level.
i couldn't answer any questions :(

I believe the answer about Pure Component is slightly wrong.
Pure components as far as I know are still quite often used.

In Function Components, for example, you can create a Pure Component by wrapping it into a React.memo function.
In React, again, as far as I know, everything below the component that changed is re-rendered. If the child component is a Pure component, the re-rendering propagation ands in this component IF the props passed to it has not changed.

Nice

thanks !

Amazing.
Thanks a ton❤

Amazing video. Thank you 🙏🏻

Quite good (and important) questions. Cheers, guys!

Great video, thanks guys 👍

Great video loved it. Pps bring more videos on senior Frontend content. Keep going!🎉

This was a great video! Love the depth on the answers. This should really help people to get a better sense on what they can expect in the interviews and how to approach answering a question. Would love to see more videos like this one 👏