The Front End Developer Interview Questions You Are GOING to Encounter… and How to Beat Them

Brian Jenney
2 min readAug 3, 2022

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As a front end developer in an interview, you’re more likely to get a problem dealing with arrays, objects and JS trivia than you are a “reverse this linked-list” type of question. Easier right?

Depends.

Data structures and algorithms are actually pretty straight forward to learn. There are a few common structures to learn and algorithms and concepts surrounding them which can be applied to nearly any white boarding interview.

But if you’re reading this, you’re probably a front end developer who specializes in JS.

Javascript can encompass a lot. Like a whole lot. So what do you study?

Well, from speaking with about 100 developers over the last few months and participating in around 100 interviews myself over the last 8 years — I see the same concepts keep coming up.

You can’t study everything, but by knowing these concepts, I feel like you will be prepared for the majority of front end focused interviews.

Instructions

The best way to consume this material is by watching the videos (I like to watch on 2x speed), doing a little research on your own and using the code I provide as a starting point to make your own.

That last part is really important!

It’s easy to watch someone code but the only way to cram this material into your noggin is by writing some code yourself!

At the bottom of most videos is a link to the code source or useful articles — make sure to check them out

Your Videos

Closure

Promises

Common ReactJS Interview Challenge

Find Duplicates in Array: (Using a Frequency Counter)

2 Sum

BONUS

Binary Search Trees Intro

When you’re ready, there are a couple of ways I can help you with Javascript and your career as a developer 👇🏽

Work with me 1 on 1 to accelerate your JS career or land your first role! We don’t stop until you are hired!

Bootcamp skipped unit testing? Lame. Go from zero to unit testing with my course for JavaScript developers who want to get really good at unit testing and React Testing Library in 1 week!

Schedule a 15 min brainstorm session for advice on your career or interview strategy

Read this post and more on my Typeshare Social Blog

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Brian Jenney
Brian Jenney

Written by Brian Jenney

full-stackish developer, late bloomer coder and power google user and owner of Parsity.io

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