// Need to create a new RandOnce component based on the Rand component, // which when used in App // will not update the random number every 3 seconds, but will output a random number only once. // const Rand = () => <span>{Math.random()}</span>
You have assessed the task, taken it on, and realize that you have estimated it incorrectly and cannot complete it on time. What do you do at this moment?
What is useMemo? How does it differ from React.memo and useCallback?
What ways are there to handle errors in Promise? Can try/catch be used?
Have you had tests? Do you have experience writing E2E automated tests?
How is your experience with TypeScript? There is a Foo type with fields a: string, b: number, c: null, d: boolean. How to create a FooKeys type based on Foo that includes all keys?
What is React.memo? Can you wrap the entire application in memo? Why is it bad to use memoization everywhere?
