InfoQ Homepage JavaScript Content on InfoQ
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Microsoft Releases TypeScript 5.9 with Deferred Imports and Enhanced Developer Experience
Discover TypeScript 5.9, enhancing developer experience with new features like deferred imports, streamlined project setup, and expandable hover previews. With performance optimizations and support for Node.js v20, this exciting update simplifies configurations and boosts productivity, making TypeScript even more powerful for building scalable applications.
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JSON Modules Can Now Be Imported in JavaScript in All Modern Browsers, CSS Modules to Follow
Thomas Steiner, developer relations engineer at Google, recently published a blog post announcing that JSON module scripts were now available in all modern browsers. Developers using the latest version of modern browsers can now directly import JSON modules into their JavaScript code. The feature builds on the Import Attributes proposal. Native CSS modules import may soon follow.
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TC39 Advances Nine JavaScript Proposals, Including Array.fromAsync, Error.isError, and Using
The Ecma Technical Committee 39 (TC39), the body responsible for the evolution of JavaScript (ECMAScript), recently advanced nine proposals through its stage process, with three new language features becoming part of the standard: Array.fromAsync, Error.isError, and explicit resource management with using.
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Biome Releases v2.0 Beta
Biome, the all-in-one JavaScript toolchain, has released v2.0 Beta. Biome 2.0 Beta introduces a number of new features in this beta which bring it closer to ESLint and Prettier, such as plugins, to write custom lint rules, domains to group your lint rules by technology and improved sorting capabilities.
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Svelte Releases Attachments to Enhance DOM with Interactive and Reactive Features
The latest version of Svelte includes a new functionality dubbed attachments that enhances a web application’s DOM with interactive and reactive features. Svelte Attachments replace Svelte Actions.
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Rust-Based Drop-in Replacement for Vite Released, Early Adopters Report 10X Faster Builds
Evan You, the creator of the Vue.JS front-end framework, recently announced a technical preview for rolldown-vite, a drop-in replacement for the Vite bundler written in Rust. Early adopters (e.g., Excalidraw, GitLab) report 3-16x faster builds and dramatically reduced memory usage.
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Google’s “What’s New in Web UI” Talk: Less Custom Component JavaScript, More Web Standards
Una Kravets recently presented in a talk recent developments in Web UI supported by the Chrome team. Some common UI patterns that currently require a significant amount of JavaScript may soon be implemented in a declarative manner with new features of HTML and CSS, with less custom JavaScript, and with built-in accessibility.
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Vitest Introduces Browser Mode as Alternative to JSDOM
Vitest, the modern Vite-native test runner, has introduced Vitest Browser Mode, offering developers an alternative to traditional DOM simulation libraries like JSDOM. The addition of browser mode to Vitest allows tests to run in an actual browser context, offering more realistic and reliable testing behavior for UI applications built with React, Vue, or Svelte.
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ESLint Now Officially Supports CSS, JSON, and Markdown
Following up on plans to turn ESLint into a general-purpose linter, the ESLint team recently announced official support for the CSS language. The support comes in addition to recently added support for JSON and Markdown linting.
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ByteDance Launches New AI Coding Tool Trae with DeepSeek R1 and Claude 3.7 Sonnet Free for All Users
ByteDance, the Chinese owner of TikTok, recently launched Trae, a new AI-powered code editor that offers unlimited free access to DeepSeek R1 and Claude 3.7 Sonnet large language models. Trae has both an international and domestic version, supports Visual Studio Code plug-ins, and competes with an increasing line of AI code editors (e.g., Cursor, Windsurf, PearAI, Replit).
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Vite 6 Released: New Environment API Helps Supporting Edge Use Cases
The Vite team recently announced Vite 6, which they labeled as a significant major release. Vite 6 introduces the Environment API, a feature that targets framework authors. With the Environment API, authors may for instance support edge deployment cases and offer a dev experience closer to that of production.
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Express 5.0 Released, Focuses on Stability and Security
The Express.js team has released version 5.0.0, 10 years after the first major version release in 2014. The release focuses on stability and security with a view to enabling developers to write more robust Node.js applications.
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vlt Introduces New JavaScript Package Manager and Serverless Registry
Introducing **vlt**, a groundbreaking open-source JavaScript package manager by former npm team members. Designed as an intuitive drop-in replacement, vlt simplifies dependency management with an innovative query selector and new export formats. Alongside it, **vsr** offers a fair-source serverless registry for enhanced package access control. Embrace the future of JS tooling!
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Deno 2 Released, Focuses on Interoperability with Legacy JavaScript Infrastructure and Use at Scale
The Deno team recently released Deno 2. According to the team, Deno 2 provides seamless interoperability with legacy JavaScript infrastructure, a stabilized standard library, a modern registry for sharing JavaScript libraries across runtimes, and more.
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After Rome Failure, VoidZero is the Newest Attempt to Create Unified JavaScript Toolchain
Evan You, creator of the Vue web framework, announced VoidZero, a company dedicated to building a unified development toolchain for the JavaScript ecosystem. You posits that VoidZero may succeed where Rome, a project with similar goals, failed as it inherits the large user base from the popular Vite toolchain. While VoidZero would release open-source software, the company itself is VC-funded.