Comments (2)
Southhill
commented on June 30, 2024
在React中，"onClick"、"onDoubleClick" 只要是以 on 开头的属性，就是在向react描述期望达成的行为。但react本身不会在底层DOM节点上添加真正的事件处理器。React实际做的是在根元素上添加单个事件处理器，由于事件冒泡机制，这个处理器会监听所有事件。当浏览器触发我们想要的事件时，react会代表相应组件调用处理器，这个技巧称作事件代理，可以优化内存和速度。
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Southhill
commented on June 30, 2024
vue 在 v-for 时给每项元素绑定事件需要用事件代理吗？为什么？
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- 声明对象时，要使用const还是let？ HOT 1
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