Async & Promisesmedium
What are the benefits and drawbacks of using Promise.all?
Discuss how Promise.all works, including when it should be used and scenarios where it can be problematic.
Answer
- Executes multiple promises in parallel and resolves once all promises are resolved.
- Returns an array of results in the order of the promises passed.
Benefits:
- Efficient concurrent execution of asynchronous tasks.
- Simplifies syntax as it handles multiple promises at once.
Drawbacks:
- If any promise is rejected, Promise.all rejects immediately with that error.
- Not suitable for dependent tasks, where the next task relies on the previous one's result.