How to use ECharts4Taro3 to implement multi-language support for data visualization in Vue projects

How to use ECharts4Taro3 to achieve multi-language support for data visualization in the Vue project

With the widespread application of data visualization in various industries, multi-language support has become a need that cannot be ignored. Using the ECharts4Taro3 library in a Vue project, you can easily implement multi-language support for data visualization. This article will introduce in detail how to use ECharts4Taro3 to achieve multi-language support for data visualization in the Vue project, and provide corresponding code examples.

Introduction to ECharts4Taro3

ECharts4Taro3 is a chart library based on ECharts and Taro3 specially built for Taro3 developers. It provides a variety of chart types and flexible configuration options to facilitate developers to use charts for data visualization in Taro3 projects.

Multi-language support

In actual projects, it is often necessary to display different content according to the user's locale. For data visualization, multi-language support for chart titles, legends, prompt boxes, etc. also needs to be based on the user's locale. The following will demonstrate how to use Vue-i18n and ECharts4Taro3 to achieve multi-language support.

Step 1: Install dependencies

First, we need to install the related dependencies of vue-i18n and echarts4taro3 in the Vue project. You can use the following command to install:

npm install vue-i18n echarts4taro3 --save

Step 2: Create an i18n instance

In the entry file main.js of the Vue project, we need to create a i18n instance and load the corresponding language file. The sample code is as follows:

import Vue from 'vue'
import VueI18n from 'vue-i18n'
import messages from './i18n'

Vue.use(VueI18n)

const i18n = new VueI18n({
  locale: 'zh-CN', // 默认语言为中文
  messages
})

new Vue({
  router,
  store,
  i18n,
  render: h => h(App)
}).$mount('#app')

Step 3: Create language file

Create a i18n folder in the root directory of the Vue project, and create ## in the folder Two language files, #zh-CN.js and en-US.js. The sample code is as follows:

// zh-CN.js
export default {
  echarts: {
    title: '图表标题',
    legend: '图例',
    tooltip: '提示框'
  }
}

// en-US.js
export default {
  echarts: {
    title: 'Chart Title',
    legend: 'Legend',
    tooltip: 'Tooltip'
  }
}

$t method text and pass it to the corresponding property of the ECharts component. The sample code is as follows:

<template>
  <div>
    <react-echarts
      :option="chartOption"
      :lang="$t('echarts')"
    ></react-echarts>
  </div>
</template>

<script>
export default {
  data() {
    return {
      chartOption: {
        title: {
          text: ''
        },
        legend: {
          data: []
        },
        tooltip: {}
      }
    }
  }
}
</script>

locale of the i18n instance Property to dynamically switch languages. The sample code is as follows:

<template>
  <div>
    <button @click="switchLocale('zh-CN')">中文</button>
    <button @click="switchLocale('en-US')">English</button>
  </div>
</template>

<script>
export default {
  methods: {
    switchLocale(locale) {
      this.$i18n.locale = locale
    }
  }
}
</script>

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