Course Introduction：Formatting Numbers with Thousands Separators in JavaScriptQuestion:如何使用 JavaScript...

2024-12-31 comment 0  983

Course Introduction：PHP variable naming should follow the principles of clear and accurate to improve code readability and maintenance efficiency. 1.使用描述性词汇代替缩写，如$user代替$u；2.布尔值加状态词前缀，如$isvisible、$hasPermission；3.数组和集合使用复数形式，如$users、$orders；4.避免模糊词，选用具体表达实际内容的词汇，如$userData代替$data。

2025-07-17 comment 0  988

Course Introduction：要实现可靠的Go服务重试机制，应使用带抖动的指数退避，先明确答案：1.采用指数退避加随机抖动避免请求洪峰；2.封装可复用的重试函数并支持上下文控制；3.设置最大重试次数与退避上限；4.优先使用成熟库如cenkalti/backoff/v4；5.避免对404等永久错误重试并记录重试日志。 A complete implementation requires these core steps to improve system flexibility.

2025-08-07 comment 0  806

Course Introduction：Port forwarding is a technology that transfers external network requests to local devices, and is commonly used in home networks to realize external network access. Its core function is to allow the router to allow specific traffic to be transmitted to a device in the LAN through a specified port, solving the problem that the external network cannot actively connect.主要应用场景包括远程访问NAS、搭建游戏服务器、查看监控摄像头、提升下载速度等。 The settings steps are generally: 1. Log in to the router management page; 2. Find port forwarding or NAT settings; 3. Add rules to specify external ports, internal IP and protocol types; 4. Save and restart the router according to the situation.注意事项包括：使用静态IP、避免知名端口、确认有公网IP、配合防火墙、定期检查规则，建议用完即删以保障安

2025-07-17 comment 0  972

Course Introduction：在使用Netty开发WebSocket服务器时，可能会遇到浏览器在尝试连接时未能正确处理服务器返回的401状态码的情况。 �...

2025-04-19 comment 0  1097

Course Elementary  13859

Course Introduction：Scala Tutorial Scala is a multi-paradigm programming language, designed to integrate various features of object-oriented programming and functional programming.

Course Elementary  82403

Course Introduction："CSS Online Manual" is the official CSS online reference manual. This CSS online development manual contains various CSS properties, definitions, usage methods, example operations, etc. It is an indispensable online query manual for WEB programming learners and developers! CSS: Cascading Style Sheets (English full name: Cascading Style Sheets) is an application used to express HTML (Standard Universal Markup Language).

Course Elementary  13209

Course Introduction：SVG is a markup language for vector graphics in HTML5. It maintains powerful drawing capabilities and at the same time has a very high-end interface to operate graphics by directly operating Dom nodes. This "SVG Tutorial" is intended to allow students to master the SVG language and some of its corresponding APIs, combined with the knowledge of 2D drawing, so that students can render and control complex graphics on the page.

Course Elementary  24663

Course Introduction：In the "AngularJS Chinese Reference Manual", AngularJS extends HTML with new attributes and expressions. AngularJS can build a single page application (SPAs: Single Page Applications). AngularJS is very easy to learn.

Course Elementary  27514

Course Introduction：Go is a new language, a concurrent, garbage-collected, fast-compiled language. It can compile a large Go program in a few seconds on a single computer. Go provides a model for software construction that makes dependency analysis easier and avoids most C-style include files and library headers. Go is a statically typed language, and its type system has no hierarchy. Therefore users do not need to spend time defining relationships between types, which feels more lightweight than typical object-oriented languages. Go is a completely garbage-collected language and provides basic support for concurrent execution and communication. By its design, Go is intended to provide a method for constructing system software on multi-core machines.