javascript - How to get the label value of the select component in element-ui?

Question

1. As shown in the figure: 202 is selected in the drop-down list. The component's change event prints the value (which is what is printed below), but now I just want to get I don’t want to get the value 202 (which is assigned in the label attribute), but I don’t want to get the value printed below. How to solve it? Thank you, I am annoyed by this problem.

Answer 1

Your selection is rendered cyclically in the form of an array object (non-repeating). So it can be obtained by simply operating the data form,
add@change="changeValue"

Use the Array find method to find the objects in the array using the properties of the object

changeValue(value) {
    console.log(value);
      let obj = {};
      obj = this.options.find((item)=>{
          return item.value === value;
      });
      console.log(obj.label);
}

具体demo如下：
// html
<script src="//unpkg.com/vue/dist/vue.js"></script>
<script src="//unpkg.com/element-ui@1.3.5/lib/index.js"></script>
<p id="app">
<template>
  <el-select v-model="value" placeholder="请选择" @change="changeValue">
    <el-option v-for="item in options" :key="item.value" :label="item.label" :value="item.value">
    </el-option>
  </el-select>
</template>
</p>

// js
var Main = {
    data() {
      return {
        options: [{
          value: '选项1',
          label: '黄金糕'
        }, {
          value: '选项2',
          label: '双皮奶'
        }, {
          value: '选项3',
          label: '蚵仔煎'
        }, {
          value: '选项4',
          label: '龙须面'
        }, {
          value: '选项5',
          label: '北京烤鸭'
        }],
        value: ''
      }
    }
  }
var Ctor = Vue.extend(Main)
new Ctor({
    methods:{
          changeValue(value) {
            console.log(value);
          let obj = {};
          obj = this.options.find((item)=>{
              return item.value === value;
          });
          console.log(obj.label);
        }
  }
}).$mount('#app')

@import url("//unpkg.com/element-ui@1.3.5/lib/theme-default/index.css");

You can copy it to this address and run it

Answer 2

label(ref="xxx" data="56")

this.$refs.xxx.getAttribute('data')

Answer 3

You can try to reverse the label and value, thank you~