How to operate and assign values ​​to tables using jQuery

Table is a component that we often use in front-end development. We often need to operate and assign values ​​​​to the data in the form. This article will introduce how to use jQuery to operate and assign values ​​to tables.

1. Use jQuery to operate the table

1. Get the table object

When operating the table, you first need to obtain the table object. Use the selector in jQuery to obtain the table object. The sample code is as follows:

 var table = $('#tableId');

The tableId here is the id value of the table; if you select the table directly, use the table element directly.

2. Get the rows and columns in the table

Get the rows and columns in the table for operation, you can use the children() method:

 var rows = table.children('tbody').children('tr');//获取表格所有行
 var columns = rows.eq(0).children('td');//获取第一行的所有列

3. Get a single cell in the table

Cells can be obtained using the children() method:

 var cell = rows.eq(0).children('td').eq(0);//获取第一行第一列的单元格

4. Modify table data

Use text() and html() methods to modify table data;

 cell.text(‘new text’);//修改单元格的文本
 cell.html('<input>');//修改单元格的html

5. Get the selected rows in the table

As we all know, jQuery’s selector is powerful , elements can be selected based on a variety of conditions. To get selected rows, you can use the corresponding selector.

2. Use jQuery to assign the value of the table

1. Fill the value of the cell in the table

Use the val() method to assign the value of the cell:

 var inputText = $('#inputText').val();//获取表单input的值
 var cell = rows.eq(0).children('td').eq(0);
 cell.empty().append(inputText);//设置单元格的文本值

2. Add a row at the end of the table

To add a row of data to the last row of the table, you can use the append() method:

 var newRow = $('<tr></tr>');//创建新行
 newRow.append('<td>new value1</td><td>new value2</td>');//向新行中添加单元格并赋值
 table.append(newRow);//将新行添加到表格末尾

3. Table plug-in The use of

1. DataTables

DataTables is a powerful jQuery plug-in for enhancing any HTML table. Supports paging, sorting, search functions, etc. The introduction of DataTables itself does not overwrite the style of the original table, so the table can still be displayed normally, but beautiful styles are added.

2. BootstrapTable

BootstrapTable is a jQuery table plug-in developed based on Bootstrap. It has good responsive design, supports search, sorting, paging and other functions, and also supports custom templates and themes.

Summary

The above is the basic knowledge of jQuery table operation and assignment table. In actual development, table reading and assignment are also technical points that are often used. At the same time, the use of table plug-ins is also a good choice to improve development efficiency and UI effects. I hope this article can inspire and help readers.

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