How to get dom elements in vue

In Vue, methods to obtain DOM elements include: 1. Use $refs to access elements with ref attributes; 2. Use the # modifier in the template to directly bind elements to $refs; 3. Access The $el attribute of the child component; 4. Use the "Components" panel of Vue Devtools.

Methods to get DOM elements in Vue

In Vue, you can get DOM elements through the following methods ：

1. The $refs

$refs attribute is an object that contains all items with ref## in the template. # Reference to the attribute's element. Use $refs to directly access DOM elements, as shown below:

<template>
  <div ref="myElement"></div>
</template>

<script>
  export default {
    mounted() {
      console.log(this.$refs.myElement); // 输出 DOM 元素
    }
  }
</script>

2. Use in the template Modifiers **

# Modifiers can bind elements in the template directly to the $refs object of the component instance, as shown below:

<template>
  <div #myElement></div>
</template>

<script>
  export default {
    mounted() {
      console.log(this.$refs.myElement); // 输出 DOM 元素
    }
  }
</script>

3. To access the root DOM element of the child component

, you can use

$children to access the child component, and then you can use $el Property gets the root DOM element of the child component, as shown below:

<template>
  <ChildComponent ref="child"></ChildComponent>
</template>

<script>
  export default {
    mounted() {
      console.log(this.$refs.child.$el); // 输出子组件的根 DOM 元素
    }
  }
</script>

4. Using Vue Devtools

Vue Devtools is a browser extension that can be used to inspect Vue app. In Devtools, you can directly access DOM elements through the "Components" panel, as shown below:

Open Vue Devtools
• Select the "Components" panel
• Find the desired The component being viewed
• is in the "DOM" part of the component, and you can view the DOM element of the component

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