Best Practices for Asynchronous JavaScript

I've been working on a large SPA and keep hitting performance bottlenecks. What are your go-to patterns for handling async operations without causing UI jank?

• Use requestIdleCallback for low-priority tasks.
• Leverage AbortController to cancel redundant fetches.
• Wrap heavy computations in Web Workers.

Any other tips?

Great list, Jane! I’d also add using async/await consistently to keep code readable, and debouncing input events with lodash.debounce when dealing with search fields.

Don’t forget about Promise.allSettled when you need to wait for multiple promises but still handle failures individually.