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DOM之事件捕获，冒泡，代理 #15

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chenshuhong opened this issue Aug 26, 2019 · 0 comments

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chenshuhong commented Aug 26, 2019 •

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参考文章
一个完整的JS事件流是从window开始，最后回到window的一个过程
事件流被分为三个阶段捕获过程、目标过程、冒泡过程
addEventListener,第二个参数标识时候捕获，默认冒泡，即false，
利用事件冒泡可以实现事件委托

chenshuhong added the dom label

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