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November 24, 2020 03:39
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Vue Composition API 运行
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| Vue Composition API 的 setup() 晚于 beforeCreate 钩子（在 Vue 中，“钩子”就是一个生命周期方法）而早于 created 钩子被调用。 | |
| 这是我们可以分辨 React Hooks 和 Vue Composition API 的首个区别， React hooks 会在组件每次渲染时候运行，而 Vue setup() 只在组件创建时运行一次。 | |
| 因为前者可以多次运行，所以 render 方法必须遵守 某些规则，其中之一是： | |
| > 不要在循环内部、条件语句中或嵌套函数里调用 Hooks |
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