The `$refs` variable in Vue can be used to reference a specific Vue component within a class-st

Question

The `$refs` variable in Vue can be used to reference a specific Vue component within a class-st

Would it be possible to access this.$refs.label? I am using the package vue-property-decorator.

Below is the content of the component:

<template>
  <div>
    <label ref="label">asd</label>
  </div>
</template>

<script lang="ts">
class Someclass extends Vue {
  public $refs!: {
    label: HTMLElement
  }

  private mounted(): void {
    console.log(this.$refs.label) // returns a Vue component, instead of just html
  }
}
</script>

I believe that the issue lies in this pointing to the class itself. How can I successfully access this.$refs.label?

javascript typescript vue.js

Answer 1

Answer №1

When using a ref on a Vue component, you can access its DOM element by referring to it like this:

this.$refs.label.$el

The reference this.$refs.label points to a Vue instance, and you can find more information about its properties in the official documentation here.

About the ref attribute:

The ref attribute is used to assign a reference to an element or a child component. This reference will be stored under the $refs object of the parent component. If applied to a regular DOM element, the reference will be that element; if applied to a child component, the reference will be the component instance.

Latest Information Update

It turns out that your example includes a label element instead of a component. My initial assumption was based on not having all the code provided in the question, so I referenced relevant parts of the documentation. Upon reviewing your code below, it appears that the output does not match what you described initially.

Vue.component('my-component', {
  template: '<div><label ref="label">asd</label></div>',
  
  mounted() {
    const ref = this.$refs.label;
    console.log(ref);
    console.log("typeof(ref): " + typeof(ref));
    console.log("Is component: " + (ref instanceof Vue));
    console.log("Is HTMLElement: " + (ref instanceof HTMLElement));
  }
})

new Vue({
  el: '#app',
})

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<div id="app>
  <my-component />
</div>

Answer 2

When using a ref on a Vue component, you can access its DOM element by referring to it like this:

this.$refs.label.$el

The reference this.$refs.label points to a Vue instance, and you can find more information about its properties in the official documentation here.

About the ref attribute:

The ref attribute is used to assign a reference to an element or a child component. This reference will be stored under the $refs object of the parent component. If applied to a regular DOM element, the reference will be that element; if applied to a child component, the reference will be the component instance.

Latest Information Update

It turns out that your example includes a label element instead of a component. My initial assumption was based on not having all the code provided in the question, so I referenced relevant parts of the documentation. Upon reviewing your code below, it appears that the output does not match what you described initially.

Vue.component('my-component', {
  template: '<div><label ref="label">asd</label></div>',
  
  mounted() {
    const ref = this.$refs.label;
    console.log(ref);
    console.log("typeof(ref): " + typeof(ref));
    console.log("Is component: " + (ref instanceof Vue));
    console.log("Is HTMLElement: " + (ref instanceof HTMLElement));
  }
})

new Vue({
  el: '#app',
})

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<div id="app>
  <my-component />
</div>

The `$refs` variable in Vue can be used to reference a specific Vue component within a class-st

Answer №1

Latest Information Update

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