how can component delete itself in Vue 2.0

问题

as title, how can I do that

from offical documentation just tell us that $delete can use argument 'object' and 'key'

but I want delete a component by itself like this

this.$delete(this)

回答1:

No, you will not be able to delete a component directly. The parent component will have to use v-if to remove the child component from the DOM.

Ref: https://vuejs.org/v2/api/#v-if

Quoted from docs:

Conditionally render the element based on the truthy-ness of the expression value. The element and its contained directives / components are destroyed and re-constructed during toggles.

If the child component is created as part of some data object on parent, you will have to send an event to parent via $emit, modify (or remove) the data and the child component will go away on its own. There was another question on this recently: Delete a Vue child component

回答2:

I couldn't find instructions on completely removing a Vue instance, so here's what I wound up with:

module.exports = {
  ...
  methods: {
    close () {
      // destroy the vue listeners, etc
      this.$destroy();

      // remove the element from the DOM
      this.$el.parentNode.removeChild(this.$el);
    }
  }
};

回答3:

You could use the beforeDestroy method on the component and make it remove itself from the DOM.

beforeDestroy () {
  this.$root.$el.parentNode.removeChild(this.$root.$el)
},

回答4:

Instead of deleting your component from its parent you can still use v-if on the first <div> tag from the component itself. This would leave an empty component in your page and it's not best practice but may avoid handling events from parent.

来源：https://stackoverflow.com/questions/40445125/how-can-component-delete-itself-in-vue-2-0

标签

Vue.js

vue-component