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      DoorFeed

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      Frontend Engineer Interview

      26 Sept 2024
      Anonymous interview candidate
      London, England
      No offer
      Positive experience
      Easy interview

      Application

      I applied through a recruiter. I interviewed at DoorFeed (London, England) in Sept 2024

      Interview

      I had an online screening interview with one of their frontend engineers. Overall for me the experience was pretty positive but I did not expect to get technical questions at the end of the interview, noting that it was scheduled for 15 mins only but it lasted 30-40 mins. I was excited to learn about the company and genuinely felt like I would want to work there, given my experience working at a startup. Unfortunately, I didn't answer some of the technical questions with confidence which I feel like the reason they didn't want to continue with me. I didn't get any feedback from them but they gave their decision the next day.

      Interview questions [1]

      Question 1

      What is virtual DOM? Explain the warning for “child in a list should have a unique key prop” and how to solve it
      Answer question