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Javascript Engineer Interview Questions

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1,680 javascript engineer interview questions shared by candidates

Round 1- The first round was a Reactjs coding round where I had to render a list of text headings from a JSON API input. Then make each item clickable to display/ hide a subtext after clicking on headings. Lastly, keep and display a count of text items clicked. Round 2- First hour(1/5) was again React coding round, where you are given a UI component for empty and occupied parking spot and you have to reuse the UI components to render a parking lot. Then make the parking spot clickable to park/ unpark a car in spot. Lastly, each parking spot has a cost associated with it which we had to add and display based on number of cars parked in the lot Second hour(2/5) - Plain javascript coding with easy array based algorithmic question. Third Hour(3/5) - Review their mobile app and make suggestion on how to improve/ test it. Fourth Hour(4/5) - Design their mobile app from scratch. What libraries will you use. How will you divide work among team. How will you design data store. What APIs will be required to display the search result page. Fifth Hour(5/5) - Behavioral with Hiring manager. What are you looking to achieve/ learn in your next role?
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Principal Javascript Engineer, Mobile

Interviewed at CarGurus

4.1★
Dec 1, 2022

Round 1- The first round was a Reactjs coding round where I had to render a list of text headings from a JSON API input. Then make each item clickable to display/ hide a subtext after clicking on headings. Lastly, keep and display a count of text items clicked. Round 2- First hour(1/5) was again React coding round, where you are given a UI component for empty and occupied parking spot and you have to reuse the UI components to render a parking lot. Then make the parking spot clickable to park/ unpark a car in spot. Lastly, each parking spot has a cost associated with it which we had to add and display based on number of cars parked in the lot Second hour(2/5) - Plain javascript coding with easy array based algorithmic question. Third Hour(3/5) - Review their mobile app and make suggestion on how to improve/ test it. Fourth Hour(4/5) - Design their mobile app from scratch. What libraries will you use. How will you divide work among team. How will you design data store. What APIs will be required to display the search result page. Fifth Hour(5/5) - Behavioral with Hiring manager. What are you looking to achieve/ learn in your next role?

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