[GitHub] [echarts] SupaFan edited a comment on issue #14342: Vue3项目中使用折线图出现tooltip不显示

[GitBox <gi...@apache.org>]

SupaFan edited a comment on issue #14342:
URL: https://github.com/apache/echarts/issues/14342#issuecomment-800732369


   我用vite vue3也遇到这个问题了 保存实例的变量不要放到data里面就解决了 这具体原因是什么呢？
   ===================割===================
   后续 封装了组件 单单定义一个变量多图表会出现问题
   ```
   <template>
     <div class="echarts" ref="chart" />
   </template>
   
   <script >
   import * as echarts from "echarts";
   let chart = {};
   
   export default {
     name: "chart",
     data() {
       return {
         resizeTimer: null,
         version: "1.0",
         chartTemp: null,
       };
     },
   
     props: {
       // 图表参数
       options: Object,
       initOptions: Object,
     },
   
     options: {
       deep: true,
       handler(options) {
         if (Object.prototype.toString.call(options) === "[object Object]") {
           this.setOption(options);
         }
       },
     },
     methods: {
       // 初始化
       init() {
         const { options, initOptions } = this.$props;
         if (chart[this.chartTemp]) {
           chart[this.chartTemp].dispose();
           chart[this.chartTemp] = null;
         }
         chart[this.chartTemp] = echarts.init(
           this.$refs.chart,
           {},
           initOptions
         );
         if (options) {
           chart[this.chartTemp].setOption(options);
         }
       },
   
       // 调整尺寸
       resize(options = {}) {
         this.resizeTimer = clearTimeout(this.resizeTimer);
         this.resizeTimer = setTimeout(() => {
         this.init()
         }, 300);
       },
     },
     mounted() {
       this.chartTemp = Math.random();
       this.$nextTick(() => {
         this.init();
       });
       window.addEventListener("resize", this.resize);
     },
     beforeUnmount() {
       if (chart[this.chartTemp]) {
         window.removeEventListener("resize", this.resize);
         this.resizeTimer = clearTimeout(this.resizeTimer);
         chart[this.chartTemp].dispose();
         chart[this.chartTemp] = null;
       }
     },
   };
   </script>
   
   ```
   


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