React interview questions
What are the questions would you ask during interview to find out the person’s react skill. #tech #react
Facebook HiHi1166 Oct 5, 2021
I’ve had companies ask me to build a file structure app in react. (Nothing crazy, basically just seeing if I understand recursion and how to use it within react components) Also they’ll typically dive deep in the life cycle. How each step of it works in a practical sense Also I’ve had interviews around building to some api that involves getting a list of stuff, sometimes involving pagination. Rendering that list with rows and it’s contents.
Dropbox jumpbox Oct 5, 2021
Is this for a front end or full stack or general SWE position ?
Flagged by the community.
Your react app is not performant, how would you find the root cause and improve the performance/ creating a react app from scratch, what would be the consideration to keep the app smooth. This is an open ended question and will check the candidates overall react knowledge, if they have worked with react for a good amount of time they should mention - Use ref for non render state change Use memo and callback usage and trade offs Using chrome performance and react Dev tools to identify issues Several Js optimising techniques which makes sense for react as well
Btw OP, my Salesforce interview is coming this week, need your guidance, can I DM you ?
It’s a good question. I think I would bomb this though haha 😆.