How to use HTML, CSS and jQuery to implement search functions within web pages-JS Tutorial-php.cn

Home

Web Front-end

JS Tutorial

How to use HTML, CSS and jQuery to implement search functions within web pages

PHPz

Oct 25, 2023 am 11:38 AM

cssjqueryhtmlSearch function

How to use HTML, CSS and jQuery to implement search functions within web pages

Introduction:
With the rapid development of the Internet, search engines have become the first choice for people to obtain information. important way. However, in some cases, we may need to implement a search function within a specific web page so that users can quickly find what they want. This article will introduce how to use HTML, CSS and jQuery to implement the search function within the web page, and give specific code examples.

1. HTML part code:
First, we need to use HTML to build the basic web page structure, and add a search box and an area for displaying search results. The code is as follows:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>网页内搜索功能</title>
    <style>
        /* CSS样式代码在下一部分给出 */
    </style>
</head>
<body>
    <div class="search-container">
        <input type="text" id="search-input" placeholder="请输入关键字...">
        <button id="search-button">搜索</button>
    </div>
    <div id="search-results">
        <!-- 搜索结果显示在这里 -->
    </div>

    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
    <script>
        /* jQuery代码在下一部分给出 */
    </script>
</body>
</html>

2. CSS part code:
Next, we need to use CSS to beautify the style of the search box and search results area. The code is as follows:

.search-container {
    text-align: center;
    margin-top: 20px;
}

#search-input {
    width: 300px;
    height: 40px;
    font-size: 16px;
    padding: 5px 10px;
    border: none;
    border-radius: 4px;
    box-shadow: 0 0 3px rgba(0, 0, 0, 0.3);
    outline: none;
}

#search-button {
    width: 80px;
    height: 40px;
    font-size: 16px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 4px;
    margin-left: 10px;
    cursor: pointer;
}

#search-results {
    margin-top: 20px;
}

3. jQuery part code:
Finally, we use jQuery to implement the search function. The code is as follows:

$(document).ready(function() {
    $("#search-button").click(function() {
        var keyword = $("#search-input").val(); // 获取搜索关键字

        // 遍历网页内的所有要搜索的元素，并将匹配到的结果显示在搜索结果区域
        $("p, h1, h2, h3, h4, h5, h6").each(function() {
            var text = $(this).text(); // 获取元素的文本内容
            if (text.includes(keyword)) {
                $(this).css("background-color", "yellow");
            } else {
                $(this).css("background-color", ""); // 清除之前匹配到的元素的背景颜色
            }
        });
    });
});

Code explanation:

First, we write the code in the $(document).ready() function to ensure that the page is loaded before executing.
When the search button is clicked, we get the keywords in the search box, and then use the each() function to traverse all the elements to be searched (assuming here that the elements to be searched are titles and paragraphs in the page).
For each element, we obtain its text content through the text() function, and use the includes() function to determine whether it contains keywords.
If the keyword is included, we set the background color to yellow through the css() function, indicating that the result is matched; if the keyword is not included, we clear the background color of the previously matched element.

Summary:
Through the combination of HTML, CSS and jQuery, we can easily implement the search function within the web page. Users can enter keywords in the search box, and after clicking the search button, the page will highlight elements matching the keywords to help users quickly locate the content they want. The above are the usage instructions with specific code examples. I hope it will be helpful to everyone.

The above is the detailed content of How to use HTML, CSS and jQuery to implement search functions within web pages. For more information, please follow other related articles on the PHP Chinese website!

Statement

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

JavaScript Engines: Comparing ImplementationsApr 13, 2025 am 12:05 AM

Different JavaScript engines have different effects when parsing and executing JavaScript code, because the implementation principles and optimization strategies of each engine differ. 1. Lexical analysis: convert source code into lexical unit. 2. Grammar analysis: Generate an abstract syntax tree. 3. Optimization and compilation: Generate machine code through the JIT compiler. 4. Execute: Run the machine code. V8 engine optimizes through instant compilation and hidden class, SpiderMonkey uses a type inference system, resulting in different performance performance on the same code.

Beyond the Browser: JavaScript in the Real WorldApr 12, 2025 am 12:06 AM

JavaScript's applications in the real world include server-side programming, mobile application development and Internet of Things control: 1. Server-side programming is realized through Node.js, suitable for high concurrent request processing. 2. Mobile application development is carried out through ReactNative and supports cross-platform deployment. 3. Used for IoT device control through Johnny-Five library, suitable for hardware interaction.

Building a Multi-Tenant SaaS Application with Next.js (Backend Integration)Apr 11, 2025 am 08:23 AM

I built a functional multi-tenant SaaS application (an EdTech app) with your everyday tech tool and you can do the same. First, what’s a multi-tenant SaaS application? Multi-tenant SaaS applications let you serve multiple customers from a sing

How to Build a Multi-Tenant SaaS Application with Next.js (Frontend Integration)Apr 11, 2025 am 08:22 AM

This article demonstrates frontend integration with a backend secured by Permit, building a functional EdTech SaaS application using Next.js. The frontend fetches user permissions to control UI visibility and ensures API requests adhere to role-base

JavaScript: Exploring the Versatility of a Web LanguageApr 11, 2025 am 12:01 AM

JavaScript is the core language of modern web development and is widely used for its diversity and flexibility. 1) Front-end development: build dynamic web pages and single-page applications through DOM operations and modern frameworks (such as React, Vue.js, Angular). 2) Server-side development: Node.js uses a non-blocking I/O model to handle high concurrency and real-time applications. 3) Mobile and desktop application development: cross-platform development is realized through ReactNative and Electron to improve development efficiency.

The Evolution of JavaScript: Current Trends and Future ProspectsApr 10, 2025 am 09:33 AM

The latest trends in JavaScript include the rise of TypeScript, the popularity of modern frameworks and libraries, and the application of WebAssembly. Future prospects cover more powerful type systems, the development of server-side JavaScript, the expansion of artificial intelligence and machine learning, and the potential of IoT and edge computing.

Demystifying JavaScript: What It Does and Why It MattersApr 09, 2025 am 12:07 AM

JavaScript is the cornerstone of modern web development, and its main functions include event-driven programming, dynamic content generation and asynchronous programming. 1) Event-driven programming allows web pages to change dynamically according to user operations. 2) Dynamic content generation allows page content to be adjusted according to conditions. 3) Asynchronous programming ensures that the user interface is not blocked. JavaScript is widely used in web interaction, single-page application and server-side development, greatly improving the flexibility of user experience and cross-platform development.

Is Python or JavaScript better?Apr 06, 2025 am 12:14 AM

Python is more suitable for data science and machine learning, while JavaScript is more suitable for front-end and full-stack development. 1. Python is known for its concise syntax and rich library ecosystem, and is suitable for data analysis and web development. 2. JavaScript is the core of front-end development. Node.js supports server-side programming and is suitable for full-stack development.

See all articles