vue3页面加载前构子函数
时间: 2023-09-17 21:06:41 浏览: 52
在Vue 3中,页面加载前的构造函数是beforeMount()。在beforeMount()阶段,可以访问数据,模板编译已经完成,虚拟DOM已经存在。这个阶段是一个钩子函数,可以在其中执行自己的代码,将自己的逻辑挂载到Vue实例上。在beforeMount()之前,模板中的占位符(如{{message}})已经被虚拟DOM占住了,直到mounted()阶段才会将实际的值渲染到模板中。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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