A concise guide: How to change table row attribute values ​​using jQuery

Title: Concise Guide: How to use jQuery to change table row attribute values

In the process of web development, we often encounter situations where we need to dynamically change table row attribute values. Condition. jQuery, as a popular JavaScript library, can easily implement this function. This article will introduce how to use jQuery to change table row attribute values ​​and give specific code examples.

1. First prepare a simple HTML table:

<table id="myTable">
    <tr>
        <td>姓名</td>
        <td>年龄</td>
    </tr>
    <tr id="row1">
        <td>张三</td>
        <td>25</td>
    </tr>
    <tr id="row2">
        <td>李四</td>
        <td>30</td>
    </tr>
    <tr id="row3">
        <td>王五</td>
        <td>28</td>
    </tr>
</table>

2. How to use jQuery to change the table row attribute value:

We can use jQuery selector and attr( ) method to change the attribute value of a table row. The following is a simple example that demonstrates how to change the background color of a table row to red:

$(document).ready(function(){
    $("#row1").attr("style", "background-color: red;");
});

In the above code, we select the table row with the ID row1 and use the attr() method to set its background color is red. In this way we can change any properties of the table rows like background color, text color, font size, etc.

3. Dynamically change the table row attribute value:

In addition to changing the table row attribute value when the page is loaded, we can also dynamically change it through event triggering. For example, changing the attribute value of a table row when a button is clicked. Here is an example of changing the text color of a table row to blue when a button is clicked:

$(document).ready(function(){
    $("#changeColorBtn").click(function(){
        $("#row2").attr("style", "color: blue;");
    });
});

In the above code, we bind a click event of a button, and when the button is clicked, the The text color of the table row with id row2 changes to blue.

Summary:

Using jQuery to change table row attribute values ​​is a very practical function that can make the page more interactive and dynamic. Through the above sample code, I hope readers can clearly understand how to use jQuery to achieve this function, and can use it flexibly in actual development.

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