How to use Vue and Element-UI for visual display of data

How to use Vue and Element-UI for visual display of data

Foreword:
In modern data-driven applications, data visualization is an important and essential function. Vue and Element-UI, as currently popular front-end frameworks, provide a wealth of tools and components, making the implementation of data visualization simple and intuitive. This article will introduce how to use Vue and Element-UI to achieve visual display of data, and provide code examples to help readers understand in depth.

1. Install Vue and Element-UI
First, we need to install Vue and Element-UI. Open the terminal, enter the project directory, and execute the following command:

npm install vue
npm install element-ui

2. Using the basic components of Element-UI
Element-UI provides many commonly used basic components, we can use these components to quickly build data Visual interface. The following are some commonly used components:

1. Table (el-table)
   Table is a common way of displaying data. Element-UI's table component provides a wealth of functions, including sorting, filtering, paging, etc. The following is a simple table example:

<template>
  <el-table :data="tableData" border>
    <el-table-column prop="date" label="日期" width="180"></el-table-column>
    <el-table-column prop="name" label="姓名" width="180"></el-table-column>
    <el-table-column prop="address" label="地址"></el-table-column>
  </el-table>
</template>

<script>
export default {
  data() {
    return {
      tableData: [
        { date: "2019-01-01", name: "张三", address: "北京市" },
        { date: "2019-01-02", name: "李四", address: "上海市" },
        { date: "2019-01-03", name: "王五", address: "广州市" },
      ],
    };
  },
};
</script>

2. Chart (el-chart)
   Charts are a common way of presenting data. Element-UI's chart component supports multiple types of charts, including line charts, bar charts, pie charts, etc. The following is a simple bar chart example:

<template>
  <el-chart :data="chartData" type="bar" height="400px"></el-chart>
</template>

<script>
export default {
  data() {
    return {
      chartData: {
        labels: ["一月", "二月", "三月"],
        datasets: [
          {
            label: "销售额",
            data: [1000, 2000, 3000],
          },
        ],
      },
    };
  },
};
</script>

3. Progress bar (el-progress)
   The progress bar can be used to show the progress or completion of data. Element-UI's progress bar component supports different styles and animation effects. The following is a simple progress bar example:

<template>
  <el-progress :percent="50"></el-progress>
</template>

The above are simple examples of some basic components of Element-UI. By combining these components, we can build rich and diverse data visualization interfaces.

3. Use Vue to process data
In practical applications, we usually need to process and display data. Vue's responsive data binding mechanism makes data processing and display more convenient. The following is a simple example that shows how to use Vue to process data:

<template>
  <el-table :data="tableData" border>
    <el-table-column prop="date" label="日期" width="180"></el-table-column>
    <el-table-column prop="name" label="姓名" width="180"></el-table-column>
    <el-table-column prop="address" label="地址"></el-table-column>
  </el-table>
</template>

<script>
export default {
  data() {
    return {
      rawData: [
        { date: "2019-01-01", name: "张三", address: "北京市" },
        { date: "2019-01-02", name: "李四", address: "上海市" },
        { date: "2019-01-03", name: "王五", address: "广州市" },
      ],
      tableData: [],
    };
  },
  mounted() {
    this.tableData = this.rawData.map(item => {
      return {
        date: item.date,
        name: item.name.toUpperCase(),
        address: item.address,
      };
    });
  },
};
</script>

In the above example, we associate the original data (rawData) and the display data (tableData) through Vue's data binding mechanism stand up. By processing the original data in the mounted hook, we can couple the data display and processing logic.

4. Conclusion
In this article, we introduced how to use Vue and Element-UI for data visualization display. By using the basic components provided by Element-UI, we can quickly build a rich and diverse data visualization interface. At the same time, Vue's data binding mechanism makes data processing and display more convenient. I hope the content of this article will be helpful to readers and provide them with some ideas and guidance for implementing data visualization in actual projects.

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