Introduction to vue component name-JS Tutorial-php.cn

Introduction to vue component name

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Release： 2018-07-04 10:32:15

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When you write a vue project, you will encounter various naming of components. Next, I will share with you a summary of the role of vue component name through this article. Friends who are interested can take a look.

We are here When writing a vue project, you will encounter naming the component

The name here is not a required option. It seems to be of no use, but in fact there are quite a lot of uses here

 export default {
   name:&#39;xxx&#39;
}

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1. When the project uses keep-alive, it can be used with the component name for cache filtering

For example:

We have A component is named detail. After the dom is loaded, we load the data in the hook function mounted

export default {
  name:&#39;Detail&#39;
}，
mounted(){
  this.getInfo();
}，
methods:{
  getInfo(){
     axios.get(&#39;/xx/detail.json&#39;,{
       params:{
        id:this.$route.params.id 
       }
     }).then(this.getInfoSucc)
   }
 }

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Because we used keep- in App.vue alive causes the page to not be re-requested when we enter it for the second time, that is, the mounted function is triggered.

There are two solutions. One is to add the activated() function and obtain the data every time you enter a new page.

Another solution is to add a filter in keep-alive, as shown below:

 <p id="app"> 
  <keep-alive exclude="Detail">
   <router-view/>
  </keep-alive>
 </p>

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##2.DOM When making recursive components

For example, there is a list.vue subcomponent in the detail.vue component. When recursively iterating, you need to call its own name

list.vue:

 <p>
    <p v-for="(item,index) of list" :key="index">
      <p>
        <span class="item-title-icon"></span>
        {{item.title}}
      </p>
      <p v-if="item.children" >
        <detail-list :list="item.children"></detail-list>
      </p>
    </p>
 </p>
<script>
export default {
  name:&#39;DetailList&#39;,//递归组件是指组件自身调用自身
  props:{
    list:Array
  }
}
</script>

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list data:

const list = [{
     "title": "A",
     "children": [{
      "title": "A-A",
      "children": [{
       "title": "A-A-A"
      }]
     },{
        "title": "A-B"
     }]
    }, {
     "title": "B"
    }, {
     "title": "C"
    }, {
     "title": "D"
    }]

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The results of the iteration are as follows:

3. When you use vue-tools

The group name displayed in the vue-devtools debugging tool is determined by the component name in vue

The above is the entire content of this article. I hope it will be helpful to everyone's study. For more related content, please pay attention to the PHP Chinese website!

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