Front End Software Engineer Interview Questions

852 front end software engineer interview questions shared by candidates

The fibonacci sequence was the hardest, but still not very hard. The odd bit is that the interviewer seemed to think I should have solved this recursively, but that would be a common mistake for recursion. fib(n-1) + fib(n), as it gives exponential growth, something like O(n^n-1). Not sure which but exponentially longer than an the iterative method of O(n)
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Front End Software Engineer

Interviewed at InstaEDU

3.1
Jan 9, 2015

The fibonacci sequence was the hardest, but still not very hard. The odd bit is that the interviewer seemed to think I should have solved this recursively, but that would be a common mistake for recursion. fib(n-1) + fib(n), as it gives exponential growth, something like O(n^n-1). Not sure which but exponentially longer than an the iterative method of O(n)

Design a web app that retrieves data from a given api, and then displays that data. Each element in the data should have it's own page with details about it and people's posted comments. The code must be written in react or backbonejs, and it should be production quality. Also include unit tests for everything. The only really hard part is that the rich text data comes back in a very strange syntax. Random sequences of characters have specific meanings as far as how the text should be formatted, and they are not following any type of standard. You have to just write code for handling all of the different character sequences. Also you pretty much have to be comfortable with React or BackboneJS.
Jun 3, 2015

Design a web app that retrieves data from a given api, and then displays that data. Each element in the data should have it's own page with details about it and people's posted comments. The code must be written in react or backbonejs, and it should be production quality. Also include unit tests for everything. The only really hard part is that the rich text data comes back in a very strange syntax. Random sequences of characters have specific meanings as far as how the text should be formatted, and they are not following any type of standard. You have to just write code for handling all of the different character sequences. Also you pretty much have to be comfortable with React or BackboneJS.

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