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本文深度剖析了 requestIdleCallback 这一 Web API，旨在实现浏览器空闲时段的协作式任务调度。内容系统性地阐述了其工作机制、IdleDeadline 对象（timeRemaining() 和 didTimeout）的用法，并提供了处理任务队列的最佳实践模式。
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