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Vue 'renderTriggered' Lifecycle Hook


Example

Using the renderTriggered lifecycle hook to show an alert every time a render is triggered.

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

Definition and Usage

The renderTriggered lifecycle hook runs when a tracked reactive component changes, and therefore triggers a new render, so that the screen gets updated with the latest changes.

The renderTriggered hook is meant to be used in debugging, and is only available in development mode.

A reactive component is a component that can change.

A render function is a function compiled by Vue that keeps track of reactive components. When a reactive component changes, the render function is triggered and re-renders the application to the screen.


Related Pages

Vue Tutorial: Vue Lifecycle Hooks

Vue Tutorial: The 'renderTriggered' Hook

Vue Tutorial: The 'renderTracked' Hook

Vue Reference: Vue 'renderTracked' Lifecycle Hook


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