英文原文:
DevTools Digest: More power with the new Command Menu
作者:Paul Bakaus;翻译:Guokai Han注:以下 Cmd 键在 Windows 上为 Ctrl 键。
Cmd+Shift+P 唤出命令菜单
Sources 面板中的文件跳转命令 Cmd + P 已经出现有一段时间了。现在我们更进一步带来了命令菜单功能,它能快速执行 DevTools 中的大部分重要功能,就像某些文本编辑器一样。
在任何位置(即使焦点在页面上)都可以使用 Cmd+Shift+P 唤出命令菜单,然后随着字符输入(部分匹配即可)而过滤命令,找到后按回车执行。例如:
- Appearance: Switch to Dark Theme (输入 switch 在深色主题和浅色默认主题之间切换)
- DevTools: Dock to bottom (输入 dock 使 DevTools 在底部和右侧位置切换)
- Mobile: Inspect Devices… (输入 inspect 打开设备调试功能界面)
- Network: Go offline (输入 go offline 设置网络面板的离线设置)
命令菜单是一种非常快捷的导航方式,并帮你发现 DevTools 中的新设置和新功能。
Pretty-print HTML
过去我们已经在 Sources 面板中实现了 JS 和 CSS 文件的 pretty-print 功能(将任何代码格式化为便于阅读的格式),现在我们又将这一功能扩展到了 THML 文件上,不仅是格式化 HTML ,同时也会格式化里面的 JavaScript 和 CSS 内容。
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The function of HTML is to define the structure and content of a web page, and its purpose is to provide a standardized way to display information. 1) HTML organizes various parts of the web page through tags and attributes, such as titles and paragraphs. 2) It supports the separation of content and performance and improves maintenance efficiency. 3) HTML is extensible, allowing custom tags to enhance SEO.

The future trends of HTML are semantics and web components, the future trends of CSS are CSS-in-JS and CSSHoudini, and the future trends of JavaScript are WebAssembly and Serverless. 1. HTML semantics improve accessibility and SEO effects, and Web components improve development efficiency, but attention should be paid to browser compatibility. 2. CSS-in-JS enhances style management flexibility but may increase file size. CSSHoudini allows direct operation of CSS rendering. 3.WebAssembly optimizes browser application performance but has a steep learning curve, and Serverless simplifies development but requires optimization of cold start problems.

The roles of HTML, CSS and JavaScript in web development are: 1. HTML defines the web page structure, 2. CSS controls the web page style, and 3. JavaScript adds dynamic behavior. Together, they build the framework, aesthetics and interactivity of modern websites.

The future of HTML is full of infinite possibilities. 1) New features and standards will include more semantic tags and the popularity of WebComponents. 2) The web design trend will continue to develop towards responsive and accessible design. 3) Performance optimization will improve the user experience through responsive image loading and lazy loading technologies.

The roles of HTML, CSS and JavaScript in web development are: HTML is responsible for content structure, CSS is responsible for style, and JavaScript is responsible for dynamic behavior. 1. HTML defines the web page structure and content through tags to ensure semantics. 2. CSS controls the web page style through selectors and attributes to make it beautiful and easy to read. 3. JavaScript controls web page behavior through scripts to achieve dynamic and interactive functions.

HTMLisnotaprogramminglanguage;itisamarkuplanguage.1)HTMLstructuresandformatswebcontentusingtags.2)ItworkswithCSSforstylingandJavaScriptforinteractivity,enhancingwebdevelopment.

HTML is the cornerstone of building web page structure. 1. HTML defines the content structure and semantics, and uses, etc. tags. 2. Provide semantic markers, such as, etc., to improve SEO effect. 3. To realize user interaction through tags, pay attention to form verification. 4. Use advanced elements such as, combined with JavaScript to achieve dynamic effects. 5. Common errors include unclosed labels and unquoted attribute values, and verification tools are required. 6. Optimization strategies include reducing HTTP requests, compressing HTML, using semantic tags, etc.

HTML is a language used to build web pages, defining web page structure and content through tags and attributes. 1) HTML organizes document structure through tags, such as,. 2) The browser parses HTML to build the DOM and renders the web page. 3) New features of HTML5, such as, enhance multimedia functions. 4) Common errors include unclosed labels and unquoted attribute values. 5) Optimization suggestions include using semantic tags and reducing file size.


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