Performance optimization Javascript Questions

Learn how to create a custom debounce function that fires both on the leading and trailing edge — ideal for responsive search inputs.

Learn how memory leaks occur in single-page apps, how to diagnose them using Chrome DevTools, and how to fix common leak sources.

Implement efficient infinite scrolling using IntersectionObserver, batching, and virtualized rendering.

Prevent performance issues by throttling high-frequency events like resize or scroll using a custom JavaScript throttle implementation.

Process large datasets without freezing the UI using setTimeout, requestIdleCallback, or Web Workers.