How to group and filter table data through Vue and Excel

How to group and filter tabular data through Vue and Excel

Introduction:
In many practical applications, we often need to group and filter tabular data for better analysis and understanding data. This article will introduce how to implement the grouping and filtering functions of tabular data through Vue and Excel, and provide corresponding code examples to help readers get started quickly.

1. Basic concepts and environment configuration of Vue
   Vue is a progressive framework for building user interfaces, which is simple and efficient. Before starting the operation, we first need to understand the basic concepts and environment configuration of Vue.

1.1 Basic concepts of Vue
The core concepts of Vue include components, instructions, data binding, etc. Among them, component is one of the most important concepts in Vue. It combines HTML, CSS and JavaScript into an independent and reusable module.

1.2 Vue environment configuration
Before using Vue, we need to install Vue in the project. First, make sure you have Node.js installed. Then, use the following command on the command line to install Vue’s development environment:
npm install vue

2. Basic concepts and data import of Excel
   Excel is a widely used spreadsheet Software has powerful functions in data analysis and processing. In order to use Excel data, we need to import the data from the Excel table into our Vue project.

2.1 Basic concepts of Excel
In Excel, we can use concepts such as workbooks, worksheets, and cells to organize and manage data.

2.2 Data Import
In order to use Excel data in Vue, we need to export the Excel table to a common data format, such as CSV or JSON. Then, we can use Vue's relevant plug-ins or methods to read and parse this data.

3. Implementing the grouping and filtering of tabular data
   Now that we have understood the basic concepts of Vue and Excel data import, we will introduce how to implement tabular data through Vue and Excel. Grouping and filtering capabilities.

3.1 Data Grouping
In order to implement data grouping, we can use Vue's calculated properties and filters. First, we need to define a computed property to classify the data according to different grouping conditions. Then, use the v-for instruction in the view layer to traverse the grouped data.

The following sample code demonstrates how to implement data grouping through Vue:

// Define data
data() {
return {

groupField: 'category',
data: [
  { name: 'A', category: 'Group 1' },
  { name: 'B', category: 'Group 2' },
  { name: 'C', category: 'Group 1' },
],

};
},

// Define computed properties
computed: {
groupData() {

const result = {};
this.data.forEach(item => {
  if (!result[item[this.groupField]]) {
    result[item[this.groupField]] = [];
  }
  result[item[this.groupField]].push(item);
});
return result;

},
},

/ /View layer
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<select v-model="groupField">
  <option value="category">Category</option>
  <option value="name">Name</option>
</select>
<ul>
  <li v-for="(group, key) in groupData" :key="key">
    {{ key }}:
    <ul>
      <li v-for="item in group" :key="item.name">
        {{ item.name }}
      </li>
    </ul>
  </li>
</ul>

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Through the above code, we can Different grouping conditions (category or name) are used to classify the data and display the grouped data in the view layer.

3.2 Data filtering
In order to implement data filtering, we can use Vue's calculated properties and input events. First, we need to define a calculated property to filter the data based on the filter criteria. Then, when the user enters keywords, the input event is used to trigger the re-filtering of the data, and the filtered data is displayed in the view layer.

The following sample code demonstrates how to implement data filtering through Vue:

// Define data
data() {
return {

keyword: '',
data: [
  { name: 'A', category: 'Group 1' },
  { name: 'B', category: 'Group 2' },
  { name: 'C', category: 'Group 1' },
],

};
},

// Define computed properties
computed: {
filterData() {

return this.data.filter(item => {
  return item.name.toLowerCase().includes(this.keyword.toLowerCase());
});

},
},

/ /View layer
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<input v-model="keyword" placeholder="Search">
<ul>
  <li v-for="item in filterData" :key="item.name">
    {{ item.name }}
  </li>
</ul>

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Through the above code, we can The keywords entered by the user filter the data in real time and display the filtered results in the view layer.

Conclusion:
Through Vue and Excel, we can easily group and filter table data. Using Vue's calculated properties and filters, and Excel's data import function, we can flexibly analyze and process data. I hope the content of this article can help readers understand and use these functions, and provide some reference for daily work.

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