}Practical Examples
Node's event loop processes callbacks in phases: timers, I/O polling, setImmediate, close callbacks. Between each phase, it checks for microtasks (resolved promises, queueMicrotask). The critical property: the loop can only advance when the current JavaScript execution yields.
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Roborock Q7 M5+——329.99美元现价229.99美元（节省100美元）
Изображение: Chris Thornbury / U.S. Air Force / Reuters
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