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JavaScript Isn’t Slow – It’s Just Scheduled Wrong

watch on portal.gitnation.org ↗https://portal.gitnation.org/contents/javascript-isnt-slow-its-just-scheduled-wrong
Talkat JSNation 2025 · on Monday, 2025-06-16· at 18:40· [javascript, web-performance]

Examines how JavaScript’s single-threaded execution leads to UI lag and why setTimeout() and requestIdleCallback() are inadequate for prioritizing work. Explains and demonstrates scheduler.postTask() as a finer-grained scheduling API, using real-world examples and performance analysis to show how prioritized scheduling can reduce UI freezes and improve responsiveness.

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