uniapp implements table sorting

With the rapid development of mobile Internet, the development of mobile web applications has received more and more attention. What follows is that the requirements for development efficiency are getting higher and higher. As a development framework based on Vue.js, Uniapp can develop applications for multiple platforms such as WeChat, Alipay, App Store, and Baidu at the same time. It has become a popular choice in mobile development. This article will introduce how to use Uniapp to implement table sorting.

1. Preparation

Before you start writing code, you need to install the uni-app-cli and uni-ui plug-ins, and introduce the table component.

First, use the following command in cmd to install uni-app-cli:

npm install -g uni-app-cli

Then in the Uniapp project, use the following command to install the uni-ui plug-in:

npm install @dcloudio/uni-ui

After the installation is complete, introduce the table component into the page that needs to be sorted using the table:

<template>
  <view>
    <uni-table
      :title="title"
      :header="header"
      :body="body"
      :order="order"
      @switch-order="switchOrder"
    />
  </view>
</template>

<script>
import { uniTable } from '@dcloudio/uni-ui'

export default {
  components: {
    uniTable
  },
  data () {
    return {
      title: '表格标题',
      header: ['姓名', '年龄', '性别'],
      body: [
        { name: '小明', age: 18, gender: '男' },
        { name: '小红', age: 20, gender: '女' },
        { name: '小刚', age: 22, gender: '男' }
      ],
      order: null
    }
  },
  methods: {
    switchOrder (order) {
      this.order = order
      if (order) {
        this.body.sort((a, b) => {
          return order === 'asc' ? a.age - b.age : b.age - a.age
        })
      }
    }
  }
}
</script>

2. Implementation method

The switchOrder method in the code is used to process the sorting logic of the table . In this example, what we implement is sorting in ascending or descending order according to age (controlled by the order variable), so we can use the sort method of the JavaScript array to sort and then re-render the table.

3. Example Demonstration

We use HBuilderX to create a Uniapp project and write the above code in the pages/index/index.vue page. The final effect is as shown in the figure below:

Click on the header to sort according to the field represented by the header (in this case, age). At the same time, clicking twice will enable the conversion between ascending and descending sorting.

4. Summary

Uniapp is a powerful and easy-to-use mobile development framework. It also provides a rich component library and plug-in library. Using Uniapp to implement table sorting is simple and easy to understand, has a small amount of code, and clear logic. It is excellent in terms of code amount and effect. You can use the demo code to quickly get started and implement your own mobile app.

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