Who is Bob React More on reddit.com

Soft questions: How do you deal with conflicts? What role(s) do you take in a team? Strengths/weaknesses (in some form) Tell me about a stressful situation you experienced, what did you learn from it? React questions (junior to senior): Describe how to use useState. What happens with a component when it receives new props? How can you share a state between multiple components? Do you have to use React with JSX? What is the difference between a controlled and uncontrolled component/input/element/form? What is the VDOM (Virtual DOM)? What are some common pitfalls when doing data fetching? Describe the usage and pitfalls of useEffect (open discussion). JS Questions (junior to senior): What is the difference between let and const? What is a callback, when would you use one? What is the difference between == and ===? What is hoisting? What is a closure? What is the event loop? When is it a good idea to use a class (open discussion). These are some from the top of my head, questions I have been asked or asked candidates during interviews. More on reddit.com

I just went through a bunch of interviews for React positions. Most companies will have you do a take home project or a live coding type of thing where you build a basic UI based on requirements. So definitely be prepared to fetch data from an API, build out a couple components, keep state, and output data to the screen. As far as questions, I got these a lot: How does the useEffect Hook work? How woulda YOU manage state in a larger application (I.e. Redux, Context API, customs store, etc) How do you make sure an app isn’t unnecessarily rerendering? Explain how routing might work in React Explain difference between props vs state What is useRef and how would you implement it? How do YOU add styling to a React project? Explain async/await These are a few questions I saw multiple times. A lot of these questions don’t necessarily have right answers, they more want to see what you’ve worked on and how you’ve implemented things in your experience. I wouldn’t worry about anything pre-hook era. I didn’t get a single question about doing things without hooks. I also didn’t get a ton of core JS questions, although I’d be prepared with basic JS principles. It does seem most positions looking for “React developers” care more about if you can hit the ground running in React, and less so focused on CS fundamentals. I don’t think that’s good necessarily, but that was my experience. Good luck! More on reddit.com

All mine were: Client wants to build this dumb custom thing. How would you approach OOTB vs custom dev discussion. Scope creep, prioritizing projects, etc. Essentially, practice pushback without being an asshole. More on reddit.com