[x]cube LABS React.js Interview

 1. Tell me about experience and previous projects

2. Closure

3. Deep Copy & Shallow Copy'

4. Dynamic Scope

5. Memory Leak

6. React Hooks

7. Dynamic Routing

8. Redux & Redux Lifecycle

9. Causes of unnecessary Rerendering.

10. Debouncing, 

11. Event Loop

12. Write a logic to sum of all numbers

const obj = { a: 1, b: { c: 2, d: { e: 3 } } };

Code:

function sumNestedValues(obj) {

  let sum = 0;


  function recursiveSum(value) {

    if (typeof value === 'number') {

      sum += value;

    } else if (typeof value === 'object' && value !== null) {

      for (let key in value) {

        recursiveSum(value[key]);

      }

    }

  }


  recursiveSum(obj);

  return sum;

}


const result = sumNestedValues(obj);

console.log(result); // Output: 6


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