How to quickly build a statistical chart system under the Vue framework

How to quickly build a statistical chart system under the Vue framework

In modern web applications, statistical charts are an essential component. As a popular front-end framework, Vue.js provides many convenient tools and components that can help us quickly build a statistical chart system. This article will introduce how to use the Vue framework and some plug-ins to build a simple statistical chart system.

First, we need to prepare a Vue.js development environment, including installing Vue scaffolding and some related plug-ins. Execute the following command in the command line:

npm install -g @vue/cli

After the installation is complete, we can use the Vue CLI to initialize a new Vue project. Execute the following command in the command line:

vue create statistics-chart

Select the default configuration according to the prompts, and then enter the project directory:

cd statistics-chart

Next, we need to install the plug-in for drawing charts. Execute the following command in the command line:

npm install vue-chartjs chart.js

After the installation is complete, we can start writing code. First, create a file named Chart.vue in the src/components directory. In this file, we will use Vue Chart.js to draw the chart.

The code of Chart.vue is as follows:

<template>
  <div class="chart">
    <canvas ref="chart"></canvas>
  </div>
</template>

<script>
import { Line } from 'vue-chartjs'

export default {
  extends: Line,
  props: ['data', 'options'],
  mounted () {
    this.renderChart(this.data, this.options)
  }
}
</script>

<style scoped>
.chart {
  position: relative;
  width: 100%;
  height: 400px;
}
</style>

In this code, we use the renderChart method provided by Vue to render the chart. We can pass the chart's data and options to the props of the Chart component for configuration.

Next, create a file named Statistics.vue in the src/views directory. In this file, we will use the Chart component to draw statistical charts.

The code of Statistics.vue is as follows:

<template>
  <div class="statistics">
    <chart :data="chartData" :options="chartOptions"></chart>
  </div>
</template>

<script>
import Chart from '@/components/Chart'

export default {
  components: {
    Chart
  },
  data () {
    return {
      chartData: {
        labels: ['January', 'February', 'March', 'April', 'May', 'June', 'July'],
        datasets: [
          {
            label: 'Sales',
            backgroundColor: 'rgba(75, 192, 192, 0.2)',
            borderColor: 'rgba(75, 192, 192, 1)',
            data: [65, 59, 80, 81, 56, 55, 40]
          },
          {
            label: 'Profit',
            backgroundColor: 'rgba(255, 99, 132, 0.2)',
            borderColor: 'rgba(255, 99, 132, 1)',
            data: [28, 48, 40, 19, 86, 27, 90]
          }
        ]
      },
      chartOptions: {
        responsive: true,
        maintainAspectRatio: false
      }
    }
  }
}
</script>

<style scoped>
.statistics {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}
</style>

In this code, we define a chartData object to store the chart data, where labels represent the X-axis data and datasets represent Multiple data sets. We also define a chartOptions object to configure some options for the chart.

Finally, configure routing in the src/router/index.js file so that the Statistics component can be accessed in the browser. The code is as follows:

import Vue from 'vue'
import VueRouter from 'vue-router'
import Statistics from '../views/Statistics.vue'

Vue.use(VueRouter)

const routes = [
  {
    path: '/',
    name: 'Statistics',
    component: Statistics
  }
]

const router = new VueRouter({
  mode: 'history',
  base: process.env.BASE_URL,
  routes
})

export default router

So far, we have completed the construction of the statistical chart system. Now we can run the project and access the page in the browser.

Execute the following command on the command line to run the project:

npm run serve

Open the browser and enter http://localhost:8080 to see the drawn statistical chart.

In this article, we use the Vue framework and some plug-ins to quickly build a simple statistical chart system. Through this example, you can learn how to use Vue to draw charts, pass data and configure options. Next, you can further extend and customize the system according to your needs, such as adding more types of charts and interactive features. I wish you success in developing a statistical chart system under the Vue framework!

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