What is scheduler.postTask?
A newer API for prioritized task scheduling. You can specify priorities: user-blocking, user-visible, or background. Use it when you need fine-grained control over task priority.
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More FAQs in Alternatives to setTimeout in Modern JavaScript
requestAnimationFrame (animations), queueMicrotask (urgent work), requestIdleCallback (low-priority work), scheduler.postTask (prioritized scheduling), async/await (async flow), and Web Workers (heavy computation).
For animations and visual DOM updates. requestAnimationFrame syncs with the browser's refresh rate, runs before the next paint, and pauses when the tab is hidden.
A callback that runs when the browser is idle (between frames). The deadline object tells you how much time is left. Use it for low-priority work like analytics and pre-fetching.
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