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dom事件和定时器同时触发哪个先执行?

当用户点击事件出发时,定时器正好也到了应该执行的时候(之前的队列中的任务都已经执行完了),是点击事件的回调先执行还是定时器的回调先执行,为什么?或者说哪个回调会先放入任务队列


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Event Loop 的设计就决定了,不会同时发生。


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