How can I optimize the performance of my JavaScript promises?

How can I optimize the performance of my JavaScript promises?

You can optimize JavaScript promises by using techniques like Promise.all for concurrent execution and avoiding unnecessary chaining.

What is Promise.all and how does it help?

Promise.all allows you to run multiple promises in parallel, which can significantly reduce the overall execution time.

Are there any common pitfalls to avoid when using promises?

Yes, common pitfalls include not handling rejections properly and creating too many nested promises, which can lead to callback hell.

Can you give me an example of using Promise.all?

Sure! Here's a simple example: Promise.all([promise1, promise2]).then(results => { /* handle results */ }); This runs both promises simultaneously.