Senior Frontend Developer Interview Questions

1,607 senior frontend developer interview questions shared by candidates

1 What is the essence of Reducer in react @@ What is middleware in react.@@ What are the type of js 4 What's the greatest usage in js. What is the data structure that you use most often in your work @@ 6 What can make "unsynchronized" look like "synchronized" 7. what's difference between "display" and "visibility".
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Senior Frontend Developer

Interviewed at Scotiabank

3.8
Oct 16, 2021

1 What is the essence of Reducer in react @@ What is middleware in react.@@ What are the type of js 4 What's the greatest usage in js. What is the data structure that you use most often in your work @@ 6 What can make "unsynchronized" look like "synchronized" 7. what's difference between "display" and "visibility".

The assignment is to implement a warehouse software. This software should hold articles, and the articles should contain an identification number, a name and available stock. It should be possible to load articles into the software from a file, see the attached inventory.json. The warehouse should have at least the following functionality; * Get all products and quantity of each that is an available with the current inventory * Remove(Sell) a product and update the inventory accordingly
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Senior Frontend Developer

Interviewed at IKEA

3.7
Nov 6, 2020

The assignment is to implement a warehouse software. This software should hold articles, and the articles should contain an identification number, a name and available stock. It should be possible to load articles into the software from a file, see the attached inventory.json. The warehouse should have at least the following functionality; * Get all products and quantity of each that is an available with the current inventory * Remove(Sell) a product and update the inventory accordingly

They send on a react project that you must pull down and run on your local machine. Make sure you have node and an IDE ready on your machine for the interview. They don't give you any instructions and require you to go through the readme and the folder structure to find it, which is awkward given you only have an hour on the interview and realistically it's closer to 50 minutes left at this stage. It was a simple enough problem to create a search box component and send all entries to that search box to an API and display the results.
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Senior Frontend Developer

Interviewed at Checkout.com

4
Mar 15, 2024

They send on a react project that you must pull down and run on your local machine. Make sure you have node and an IDE ready on your machine for the interview. They don't give you any instructions and require you to go through the readme and the folder structure to find it, which is awkward given you only have an hour on the interview and realistically it's closer to 50 minutes left at this stage. It was a simple enough problem to create a search box component and send all entries to that search box to an API and display the results.

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