var object = { name: 'John', details: { id: 308, address: { city: ['Bangalore'] } } } Expected output - [‘John’, 308, ‘Bangalore’]
React Developer Interview Questions
3,475 react developer interview questions shared by candidates
A little prankster took their friend's pet chicken and put it on top of the barn shed. They tied a rope to the bird's leg so that it could not'escape. However, they were worried that any egg laid might fall off, as the barn had slanting roofs on either side. To their relief, not a single egg fell off the top of the barn before their parents discovered their mischief. Is the above description consistent?
An API endpoint was provided and using that, data had to be fetched and shown using a table using React JS inside the JS environment.
first round : async await, promises syntax, call apply bind, closure, rest vs spread, asynchronous operation, react hooks. etc second round : main vs branch, push vs commit, agile methodology, exact keyword?, router vs routes, unit testing, thunk vs async await etc
How do I approach teamwork, dealing with conflict, technologies I work with / am interested in. The final interview was a 3-hour code pairing session with the manager and senior engineer. We went through a full-stack (node, GraphQL, React) task designed to mimic real situations they might encounter/work on.
1. Create a user form that takes in name, phone no, and few others and display in a table format in ascending order 2. string with letters and some repeat letters was given we need to rearrange in ascending order based on number of times the letter appeared (i don't rember the exact question) 3.Using use ref needed to verify some value in reacr form
Can you explain the concept of Virtual DOM and how it is used in React? What are the differences between state and props in React? How would you handle asynchronous operations in React? Can you explain the purpose of React Router and how it is used? What is the significance of key props in React lists? How do you manage state in React? Explain the useState hook. What are React lifecycle methods? Can you describe their purpose and usage? How would you optimize the performance of a React application? Can you explain the concept of controlled components in React? How does React differ from other JavaScript frameworks like Angular or Vue?
are you willing to work whenever it is required?
Can you describe a specific instance where you encountered a technical challenge while working on a project, and how did you overcome it?
Do you constantly have meeting with multicultural teams?
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