Question 1

How do promises solve callback hell in JavaScript?

Accepted Answer

Promises flatten the nesting with .then chains instead of deep callbacks. One .catch handles all errors. Promises guarantee the callback is called once with the result or error, solving inversion of control.

Question 2

What causes Callback Hell?

Accepted Answer

It occurs when multiple asynchronous operations are nested inside one another using callbacks.

Question 3

Why is Callback Hell bad?

Accepted Answer

It makes code harder to read, debug, and maintain.

Question 4

How can Callback Hell be avoided?

Accepted Answer

Promises and Async/Await provide cleaner alternatives for handling asynchronous operations.

How do promises solve callback hell in JavaScript?

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