Comments (2)
Cosen95
commented on May 26, 2024
- 在
created的时候，视图中的dom并没有渲染出来，所以此时如果直接去操作dom节点，无法找到相关的元素 - 在
mounted中，由于此时dom已经渲染出来了，所以可以直接操作dom节点
一般情况下都放到 mounted 中,保证逻辑的统一性,因为生命周期是同步执行的， ajax 是异步执行的。
服务端渲染不支持
mounted方法，所以在服务端渲染的情况下统一放到created中
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aigouzz
commented on May 26, 2024
其实最好还是放在created的时候请求数据，请求完成之后把数据渲染到vnode中，然后mounted的时候只需要在渲染一次页面，放在mounted中会在请求数据之前先渲染一遍页面，然后vue检测到数据变化之后又重新渲染了部分变化的vnode，相比之下前者开销会更小
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