InfoQ Homepage JavaScript Content on InfoQ
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Facebook Unveils Jest for JavaScript Unit Testing, Automatic Mocking
Facebook has released Jest, built on top of the Jasmine test framework, for JavaScript Unit Testing. Jest automatically mocks dependencies when running tests, and uses CommonJS instead of a proprietary module loader.
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Google Is Now Indexing JavaScript and CSS Content: Pitfalls to Avoid
Google has announced that Googlebot, its web crawler, now executes and indexes some content in JavaScript. This change could impact negatively search results, unless a few basic rules are taken into account.
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Dart 1.4 Brings New Tool for Performance Analysis
Google has released version 1.4 of its web programming language Dart. The release brings with it Observatory; a new tool for performance analysis, and a new experimental feature for dart:io, ServerSocket references.
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IBM's Nick O'Leary Demos Node-RED for the Internet of Things
Nick O'Leary presented Node-RED, an open-source project focused on the Internet of Things (IoT), at the last QCon London. The project, created by IBM's Emerging Technology team, provides a browser-based environment for visually "wiring together hardware devices, APIs and online services in new and interesting ways".
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Apple Speeds Up WebKit’s JS Engine with LLVM JIT
Apple has improved the speed of Nitro with 35% – Safari’s JavaScript engine – by converting JavaScript into LLVM IR code which is then subject to heavy optimization.
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Firefox OS 1.3 Adds New Technologies For Mobile Developers
Mozilla has announced that a new Firefox OS version is now available to Mozilla partners. The update includes many new features for both users and developers. The new OS version is already available on a new ZTE mobile phone, the ZTE Open C.
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Firefox 29 Brings Improvements in asm.js Performance, New Web API
Mozilla has released Firefox 29, bringing updates to the user interface as well as improvements in asm.js performance and new web API, including Web Audio API and CSS Flexbox, and a finalised and enabled Gamepad API.
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Visual Studio Now Supports Hybrid Cross-platform Mobile Development via Cordova
Microsoft has added native support for hybrid cross-platform mobile applications in Visual Studio 2013 Update 2.
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GitHub Open Sources the Atom IDE
GitHub has open sourced their Atom IDE including the Atom Shell framework, Atom Core, and the Atom Package Manager (apm).
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Promises: The New Async Standard in Browser JavaScript?
Everybody who did more than some basic work with JavaScript has come across asynchronous programming. However, opinions on how properly deal with this asynchrony has been a long ongoing debate in the JavaScript world. However, with the arrival of native promises in EcmaScript 6, future browser APIs will start using promises instead (where appropriate).
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Edge.js Adds Support for Linux and Mac OS X So C# and Node.js Can Run Anywhere
The Edge.js project allows developers to combine C# with Node.js, within a single process. The latest release adds support for Linux and Mac OS X, allowing developers to use the environment they want for development and hosting.
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Famo.us JavaScript Library Goes Open Source to Public, Brings Free Lessons to Community
Almost 3 years after its initial launch, the JavaScript development framework Famo.us has been taken open source to the public. Providing an open source 3D layout engine integrated with a 3D physics-based animation engine that can render to DOM, Canvas, or WebGL, Famo.us wants to help HTML5 reach its original vision.
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Express 4.0: Router improvements, Removes Bundled Middleware; But No Major Plans for Future
Express.JS, the Node.js web application framework, recently released version 4.0, with router improvements and removed bundled middleware,; but the team say they currently have "no major plans” for future releases.
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Mozilla and Unity Team Up to Rule Web Gameplay
Mozilla and Unity recently announced they have joined forces to bring Unity's popular game engine to the web using WebGL standard and Mozilla’s asm.js.
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jQuery Stops IE 6 and IE 7 Support in v1.13
jQuery will drop support for Internet Explorer 6 and Internet Explorer 7 "somewhere in 2015", jQuery Foundation president Dave Methvin stated on the official jQuery blog last week. This change will go hand in hand with the release of jQuery 1.13. The release 1.12 will be the last one with official support for the named versions of Microsoft's default browser for Windows.