Vue と ECharts4Taro3 の開発実践: 再利用可能なデータ視覚化コンポーネント ライブラリを構築する方法

npm install -g @tarojs/cli
taro init echarts-demo
cd echarts-demo
npm install echarts4taro3 --save
npm install vue-router --save
npm install vant --save

<template>
  <div class="echarts">
    <canvas id="echarts" style="width: 100%; height: 100%;"></canvas>
  </div>
</template>

<script>
import { onMounted, reactive } from 'vue'
import * as echarts from 'echarts4taro3'

export default {
  name: 'ECharts',
  setup() {
    const chartData = reactive({
      option: {
        title: {
          text: 'ECharts 示例',
        },
        xAxis: {
          type: 'category',
          data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'],
        },
        yAxis: {
          type: 'value',
        },
        series: [
          {
            data: [820, 932, 901, 934, 1290, 1330, 1320],
            type: 'bar',
          },
        ],
      },
    })

    onMounted(() => {
      const chartDom = document.getElementById('echarts')
      const myChart = echarts.init(chartDom)
      myChart.setOption(chartData.option)
    })

    return {
      chartData,
    }
  },
}
</script>

<style scoped>
.echarts {
  width: 100%;
  height: 100%;
}
</style>

<template>
  <div class="app">
    <ECharts />
  </div>
</template>

<script>
import ECharts from './components/ECharts/ECharts.vue'

export default {
  name: 'App',
  components: {
    ECharts,
  },
}
</script>

<style>
.app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}
</style>

npm run dev:weapp