In modern web development, we often need to use AJAX to update part of the page content, and jQuery is a very popular JavaScript library. It provides simple syntax and rich functions, allowing us to implement partial content more conveniently. refresh.
This article will introduce how to use jQuery to implement partial refresh td, so that your page can respond to user operations more smoothly and quickly.
- Create HTML page
First, we need to create an HTML page containing a table to display the data that needs to be updated to the user.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>局部刷新td</title>
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
</head>
<body>
<table>
<thead>
<tr>
<th>ID</th>
<th>名称</th>
<th>操作</th>
</tr>
</thead>
<tbody>
<tr data-id="1">
<td class="id">1</td>
<td class="name">Apple</td>
<td><a href="#" class="update">更新</a></td>
</tr>
<tr data-id="2">
<td class="id">2</td>
<td class="name">Banana</td>
<td><a href="#" class="update">更新</a></td>
</tr>
<tr data-id="3">
<td class="id">3</td>
<td class="name">Cherry</td>
<td><a href="#" class="update">更新</a></td>
</tr>
</tbody>
</table>
</body>
</html>In this page, we define a table with three data rows, each row contains an ID and a name, and an "Update" link. The ID information of the data row is saved in the data-id attribute for easy subsequent acquisition.
- Write jQuery code
Next, we need to write some jQuery code to achieve partial refresh. Specifically, we need to:
- Listen to the click event of the "Update" link;
- Get the ID of the data that needs to be updated;
- Send an AJAX request to get the latest Data;
- Update td content.
$(function() {
$('a.update').click(function(e) {
e.preventDefault();
var row = $(this).closest('tr');
var id = row.data('id');
$.ajax({
url: '/api/data/' + id, // 这里是获取最新数据的API地址，根据需求修改
dataType: 'json',
success: function(data) {
row.find('.name').text(data.name); // 更新名称字段
}
});
});
});In this code, we first use jQuery's closest function to find the row where the "update" link is located, and then use the data function to get the ID data of the row. Next, we use the ajax function to send a GET request to the API address, expecting to obtain the latest data. When the acquisition is successful, we use the find function to find the name field and use the text function to update the field content.
- Write API code
We wrote the jQuery code earlier, but we also need an API to provide the latest data. Below is a simple Node.js Express application example that you can modify to suit your needs.
const express = require('express')
const app = express()
const data = [
{ id: 1, name: 'Apple' },
{ id: 2, name: 'Banana' },
{ id: 3, name: 'Cherry' }
]
app.get('/api/data/:id', (req, res) => {
const id = req.params.id
const item = data.find(item => item.id == id)
res.json(item)
})
app.listen(3000, () => console.log('Server started on port 3000'))In this API, we only provide a simple GET request handler that accepts an ID parameter, looks up the data from the data array, and returns the result in JSON format. Please note that this API is just an example and you will need to modify it to suit your specific needs.
- Run the example
Now, we have finished writing the jQuery code and API code. Next, we need to start the service and access the HTML page.
First, we need to use the command line to enter the project directory, and then start the API service:
node app.js
Then, we open the index.html file in the browser, we can see a file containing three Table of data rows. When we click the "Update" link, the jQuery code will send an AJAX request to the API and update the name field in the table row.
- Summary
In this article, we introduced how to use jQuery to implement partial refresh td. Specifically, we created an HTML file containing a table, And wrote some jQuery code to implement the update. In addition, we have written a simple API to provide the latest data.
jQuery is a popular JavaScript library that provides rich functions and syntax to make web development easier. It's a great choice when you need to implement partial refresh. If you haven't used it yet, be sure to give it a try.
The above is the detailed content of Use jquery to implement partial refresh td. For more information, please follow other related articles on the PHP Chinese website!
HTML and React's Integration: A Practical GuideApr 21, 2025 am 12:16 AMHTML and React can be seamlessly integrated through JSX to build an efficient user interface. 1) Embed HTML elements using JSX, 2) Optimize rendering performance using virtual DOM, 3) Manage and render HTML structures through componentization. This integration method is not only intuitive, but also improves application performance.
React and HTML: Rendering Data and Handling EventsApr 20, 2025 am 12:21 AMReact efficiently renders data through state and props, and handles user events through the synthesis event system. 1) Use useState to manage state, such as the counter example. 2) Event processing is implemented by adding functions in JSX, such as button clicks. 3) The key attribute is required to render the list, such as the TodoList component. 4) For form processing, useState and e.preventDefault(), such as Form components.
The Backend Connection: How React Interacts with ServersApr 20, 2025 am 12:19 AMReact interacts with the server through HTTP requests to obtain, send, update and delete data. 1) User operation triggers events, 2) Initiate HTTP requests, 3) Process server responses, 4) Update component status and re-render.
React: Focusing on the User Interface (Frontend)Apr 20, 2025 am 12:18 AMReact is a JavaScript library for building user interfaces that improves efficiency through component development and virtual DOM. 1. Components and JSX: Use JSX syntax to define components to enhance code intuitiveness and quality. 2. Virtual DOM and Rendering: Optimize rendering performance through virtual DOM and diff algorithms. 3. State management and Hooks: Hooks such as useState and useEffect simplify state management and side effects handling. 4. Example of usage: From basic forms to advanced global state management, use the ContextAPI. 5. Common errors and debugging: Avoid improper state management and component update problems, and use ReactDevTools to debug. 6. Performance optimization and optimality
React's Role: Frontend or Backend? Clarifying the DistinctionApr 20, 2025 am 12:15 AMReactisafrontendlibrary,focusedonbuildinguserinterfaces.ItmanagesUIstateandupdatesefficientlyusingavirtualDOM,andinteractswithbackendservicesviaAPIsfordatahandling,butdoesnotprocessorstoredataitself.
React in the HTML: Building Interactive User InterfacesApr 20, 2025 am 12:05 AMReact can be embedded in HTML to enhance or completely rewrite traditional HTML pages. 1) The basic steps to using React include adding a root div in HTML and rendering the React component via ReactDOM.render(). 2) More advanced applications include using useState to manage state and implement complex UI interactions such as counters and to-do lists. 3) Optimization and best practices include code segmentation, lazy loading and using React.memo and useMemo to improve performance. Through these methods, developers can leverage the power of React to build dynamic and responsive user interfaces.
React: The Foundation for Modern Frontend DevelopmentApr 19, 2025 am 12:23 AMReact is a JavaScript library for building modern front-end applications. 1. It uses componentized and virtual DOM to optimize performance. 2. Components use JSX to define, state and attributes to manage data. 3. Hooks simplify life cycle management. 4. Use ContextAPI to manage global status. 5. Common errors require debugging status updates and life cycles. 6. Optimization techniques include Memoization, code splitting and virtual scrolling.
The Future of React: Trends and Innovations in Web DevelopmentApr 19, 2025 am 12:22 AMReact's future will focus on the ultimate in component development, performance optimization and deep integration with other technology stacks. 1) React will further simplify the creation and management of components and promote the ultimate in component development. 2) Performance optimization will become the focus, especially in large applications. 3) React will be deeply integrated with technologies such as GraphQL and TypeScript to improve the development experience.
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Atom editor mac version download
The most popular open source editor
SublimeText3 Linux new version
SublimeText3 Linux latest version
mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
Zend Studio 13.0.1
Powerful PHP integrated development environment
SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.
