1) What is useMemo in React? 2) What is useContext in React JS? 3) When does component Re-render? 4) What is the use of useCallback hook? 5) for(var i=0;i<5;i++){ setTimeout(()=>{ console.log()i; }); } What is the output of the above code? What changes do I need to make to get '0 1 2 3 4' as output. 6) Tell me about any challenge you came across while building a project and how did you solve it?
Tech Round 1 Interview started with brief discussion. then tech question was realted to javasctipt: 1. setTimeout consoles 2. tricky javascript hoisting question 3. async await code review type scenario 4. program of brackets problems 5. some trasformation of technology discussion I was just wondering there was no question on React concepts.
Tell me of a time that you have had to give feedback to a developer? How did you do it?
Value sets , formula types , debugging , payroll formulas , extract rule formulas.
Basic questions in HTML, CSS, javascript, React and redux
your hobbies
React lifecycle , hooks , javascript prototypical inheritance
Multiple questions on React, redux form methods, data binding etc.
ES6 advanced concepts Difference between map, some, filter, found etc
General React questions, nothing out of this world
Viewing 1451 - 1460 interview questions