Callback Hell

Question 1

What is callback hell?

Answer 1

It refers to a situation where multiple nested callbacks are used in code, making it difficult to read, debug, and maintain.

Question 2

What causes callback hell?

Answer 2

It’s often caused by a chain of asynchronous function calls that depend on the results of previous function calls.

Question 3

How can you avoid callback hell?

Answer 3

• Use named functions instead of anonymous functions
• Use promises instead of callbacks
• Use async/await instead of callbacks and promises
• Use libraries or frameworks that handle asynchronous code in a more readable way