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'onbeforeunload' 事件是否 100% 一致、有效且值得用作购物车放弃活动的触发器？

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Nothing is 100% reliable -- someone could just hit the power switch -- but it's good.

That being said, assume that it will fail sometimes. Use it more as a convenience for your customers than as a mission-critical piece of functionality.

于 2013-03-22T20:46:11.800 回答