这段摘录是来自 Josh W. Comeau 的一篇名为《SVG 友好入门》的博客文章,旨在为具备基本 Web 开发知识(HTML/CSS/JS)的读者提供关于可缩放矢量图形 (SVG) 的核心基础知识。文章介绍了 SVG 是一种像 HTML 一样使用 XML 语法的图像格式,但其真正的魔力在于作为 DOM 中的一等公民,可以通过 CSS 和 JavaScript 进行动态修改和动画制作。作者详细解释了 SVG 中的 、、、 和 等基本形状,并讨论了如何使用 viewBox 属性来实现 SVG ... more
这份文本是Sean Goedecke撰写的《我所知道的关于优秀系统设计的一切》的摘录,文章的核心观点是好的系统设计应该是平淡无奇且易于维护的,而不是复杂和花哨的。作者认为,系统设计主要在于如何组装服务,其主要组成部分包括应用服务器、数据库、缓存和队列等。文章强调了状态管理的重要性,指出数据库通常是最关键的组件,并详细讨论了诸如模式(schema)和索引设计、数据库瓶颈的规避以及慢操作的处理(通过后台作业)等实践建议。此外,作者还探讨了缓存的谨慎使用、事件机制的权衡、推拉模型的选择、关注“热路径”... more
该文档全面概述了 Rust 的并发和异步模型,将其与 JavaScript 的单线程事件循环机制进行了对比。主要区别在于 Rust 支持真正的多线程并行执行,并通过其所有权系统在编译时保证线程安全,而 JavaScript 则使用事件循环进行并发,并依赖 Web Workers 实现类似多线程的功能。文档详细比较了两种语言的执行模型、内存安全和性能,并涵盖了 Rust 中管理共享状态和实现异步编程(如使用async/await)的关键模式。最后,它提供了几个实践练习,包括实现线程安全的计数器和生... more
这两篇技术文章提供了关于亚马逊云计算服务(AWS)中三种主要计算选项的详细比较和概述,分别是 AWS App Runner、Amazon ECS (Elastic Container Service) 和 AWS Lambda。第一篇资料着重于使用 5W + How 框架对这三种服务进行全面对比,解释了它们各自的用途、用户群体、适用场景和架构位置,旨在帮助组织选择最适合其工作负载的服务。第二篇资料则侧重于比较这三种服务在 并发性 方面的差异,详细介绍了每种服务如何处理并发请求、扩展方式、定价模式... more
How this podcast ranks in the Apple Podcasts, Spotify and YouTube charts.
Apple Podcasts | #217 |
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Web技术动态 launched 5 months ago and published 135 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.
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