


Example analysis of JavaScript obtaining HTTP information in navigation bar
This article mainly introduces in detail how JavaScript can obtain the HTTP information in the navigation bar. It has certain reference value. Interested friends can refer to it.
The examples in this article share with you Android The specific code for displaying the Jiugongge picture is for your reference. The specific content is as follows
1. The annotated part in the style is to obtain the information in HTTP
2. The display effect in the body For:
1), the input prompt box will pop up automatically when opening the page
2), when you click delete, a warning box will pop up
When you click OK, Delete information
When you click Cancel, the information will not be deleted
Code
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no"> <title></title> <!-- JavaScript代码 --> <script> // console.log("URL地址: " + window.location.href); // console.log("主机名: " + window.location.hostname); // console.log("端口: " + window.location.port); // console.log("主机: " + location.host); // 主机名+端口 // console.log("协议: " + location.protocol); // console.log("路径: " + location.pathname); // console.log("有效的宽度(单位:像素): " + screen.availWidth); // console.log("有效的高度(单位:像素): " + screen.availHeight); // console.log("每个像素颜色的位数: " + screen.colorDepth); // document.write("官方浏览器代码名的字符串的表示:" + navigator.appCodeName + "<br/>"); // document.write("官方浏览器名的字符串的表示:" + navigator.appName + "<br/>"); // document.write("用户代理:" + window.navigator.userAgent + "<br/>"); // document.write("版本信息:" + window.navigator.appVersion + "<br/>"); // document.write("浏览器所在的计算机的平台:" + window.navigator.platform + "<br/>"); // document.write("Cookie:" + window.navigator.cookieEnabled + "<br/>"); </script> </head> <body> <script> function remove() { var r = confirm("确定要删除吗?"); console.log(r); } prompt("您几岁?"); </script> <table> <tr> <th>姓名</th> <th>年龄</th> <th>操作</th> </tr> <tr> <td>张三</td> <td>19</td> <td><input type="button" value="删除" onclick="return remove();"/></td> </tr> <tr> <td>李四</td> <td>18</td> <td><input type="button" value="删除" onclick="return remove();"/></td> </tr> <tr> <td>王五</td> <td>20</td> <td><input type="button" value="删除" onclick="return remove();"/></td> </tr> <tr style="display: none"> <td>赵六</td> <td>21</td> <td><input type="button" value="删除" onclick="return remove();"/></td> </tr> <tr> <td>孙七</td> <td>20</td> <td><input type="button" value="删除" onclick="return remove();"/></td> </tr> </table> </body> </html>
The above is the detailed content of Example analysis of JavaScript obtaining HTTP information in navigation bar. For more information, please follow other related articles on the PHP Chinese website!

JavaScriptisnotbuiltonCorC ;it'saninterpretedlanguagethatrunsonenginesoftenwritteninC .1)JavaScriptwasdesignedasalightweight,interpretedlanguageforwebbrowsers.2)EnginesevolvedfromsimpleinterpreterstoJITcompilers,typicallyinC ,improvingperformance.

JavaScript can be used for front-end and back-end development. The front-end enhances the user experience through DOM operations, and the back-end handles server tasks through Node.js. 1. Front-end example: Change the content of the web page text. 2. Backend example: Create a Node.js server.

Choosing Python or JavaScript should be based on career development, learning curve and ecosystem: 1) Career development: Python is suitable for data science and back-end development, while JavaScript is suitable for front-end and full-stack development. 2) Learning curve: Python syntax is concise and suitable for beginners; JavaScript syntax is flexible. 3) Ecosystem: Python has rich scientific computing libraries, and JavaScript has a powerful front-end framework.

The power of the JavaScript framework lies in simplifying development, improving user experience and application performance. When choosing a framework, consider: 1. Project size and complexity, 2. Team experience, 3. Ecosystem and community support.

Introduction I know you may find it strange, what exactly does JavaScript, C and browser have to do? They seem to be unrelated, but in fact, they play a very important role in modern web development. Today we will discuss the close connection between these three. Through this article, you will learn how JavaScript runs in the browser, the role of C in the browser engine, and how they work together to drive rendering and interaction of web pages. We all know the relationship between JavaScript and browser. JavaScript is the core language of front-end development. It runs directly in the browser, making web pages vivid and interesting. Have you ever wondered why JavaScr

Node.js excels at efficient I/O, largely thanks to streams. Streams process data incrementally, avoiding memory overload—ideal for large files, network tasks, and real-time applications. Combining streams with TypeScript's type safety creates a powe

The differences in performance and efficiency between Python and JavaScript are mainly reflected in: 1) As an interpreted language, Python runs slowly but has high development efficiency and is suitable for rapid prototype development; 2) JavaScript is limited to single thread in the browser, but multi-threading and asynchronous I/O can be used to improve performance in Node.js, and both have advantages in actual projects.

JavaScript originated in 1995 and was created by Brandon Ike, and realized the language into C. 1.C language provides high performance and system-level programming capabilities for JavaScript. 2. JavaScript's memory management and performance optimization rely on C language. 3. The cross-platform feature of C language helps JavaScript run efficiently on different operating systems.


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

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

WebStorm Mac version
Useful JavaScript development tools
