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JavaScript节流 | Davis #20

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lvzero535 opened this issue Jul 20, 2019 · 0 comments
Open

JavaScript节流 | Davis #20

lvzero535 opened this issue Jul 20, 2019 · 0 comments
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https://lvdongfeng.vip/2019/07/20/JavaScript%E8%8A%82%E6%B5%81/#more

JavaScript节流节流就是持续触发的事件，每隔一段时间，只执行一次。如鼠标移动触发的事件，如果太频繁，导致性能问题，就需要用到节流。 根据首次是否执行以及尾次是否执行，实现也是不同。使用leading和trailing分别判断首尾是否执行。 节流的实现有两种方式，一：时间戳，二：是定时器。 使用时间戳当事件触发时，取出当前的时间戳，然后减去之前的时间戳（一开始设置为0），如果大于设置的间隔时
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