#Promises

Explain JavaScript fundamentals including the event loop, call stack, and task queue with a live example. Additionally, write a polyfill for Promise.all that handles both resolve and reject cases, followed by a discussion on how Promise.allSettled differs from Promise.all and its use cases.

Implement a functional feature that utilizes promises effectively in your code. Focus on error handling and asynchronous behavior to ensure robustness.

Why are promises used in JavaScript and what advantages do they offer over traditional callbacks?

What would be the output of a sequence of operations involving promises? Discuss how microtasks fit into this scenario.

In the context of JavaScript, what are the various use cases of Promises? Discuss their importance in handling asynchronous operations.