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Vue 'renderTriggered' 生命周期钩子


示例

使用 renderTriggered 生命周期钩子,每当触发渲染时显示一个警报。

export default {
  data() {
    return {
      counter: 0
    }
  },
  renderTriggered(evt) {
    console.log("renderTriggered: ",evt)
    alert("renderTriggered");
  }
}
运行示例 »

定义和用法

当跟踪的响应式组件发生变化并因此触发新的渲染时,renderTriggered 生命周期钩子会运行,以便屏幕更新为最新变化。

renderTriggered 钩子旨在用于调试,并且仅在开发模式下可用。

响应式组件是指可以发生变化的组件。

渲染函数是由 Vue 编译的函数,用于跟踪响应式组件。当响应式组件发生变化时,渲染函数会被触发并重新渲染应用程序到屏幕上。


相关页面

Vue 教程:Vue 生命周期钩子

Vue 教程:'renderTriggered' 钩子

Vue 教程:'renderTracked' 钩子

Vue 参考:Vue 'renderTracked' 生命周期钩子


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