InfoQ Homepage ECMAScript 6 Content on InfoQ
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The Road to Removing JQuery from Gov.uk
When the team that maintains the gov.uk website faced the issue of updating their old and outdated jQuery dependency, they decided instead to get rid of it altogether. Among other benefits, they achieved a not negligible performance improvement and, in the process, created a migration guide for other developers to tap into.
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TypeScript 4.0 Adds Long-Awaited Variadic Tuple Types
The TypeScript team announced the release of TypeScript 4.0, which includes long-awaited variadic tuple type support and other improvements without introducing any major breaking changes.
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NativeScript 6.3, 6.4, 6.5 Releases Add Svelte, WebAssembly, KotlinJS and Performance Improvements
The recent NativeScript 6.3, 6.4, and 6.5 releases add a wide range of new features to their framework for building native mobile apps with TypeScript or JavaScript. Highlights in these releases include performance improvements to CSS parsing and CLI commands, support WebAssembly on Android and Svelte, 3D View Transformations, and experimental KotlinJS Support.
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Babel 7.9 Reduces Bundle Sizes, Adds TypeScript 3.8 Support
The Babel 7.9 release decreases default bundle sizes when using the module/nomodule pattern and adds support for TypeScript 3.8 and its type-only imports and exports. Babel 7.9 also improves optimizations for JSX transforms and adds experimental parser support for the ES Record & Tuple proposal.
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Tenko ES2020 JavaScript Parser
Tenko is a 100% specification compliant JavaScript parser authored in JavaScript. Tenko fully supports parsing for ES6 through ES2020 syntax and language features.
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TypeScript 3.8 Adds Private Fields and Top-Level Await
The TypeScript team announced the release of TypeScript 3.8, which includes type-only imports and exports, private fields, and top-level await.
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Eich and Crockford on the Future of JavaScript: Insight from the Creators of JavaScript and JSON
At the recent FullStack conference in London, JavaScript creator Brendan Eich, and JSON creator and JavaScript: The Good Parts author Douglas Crockford spoke on the future of JavaScript.
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Oracle Proposes Deprecating Java's JavaScript Engine Nashorn
Oracle announced via JDK Enhancement Proposal (JEP) 355 that the Nashorn JavaScript Engine will be deprecated and eventually removed from all future Java Development Kits (JDKs). With the rapid pace at which ECMAScript language constructs have changed, Oracle found the Nashorn JavaScript Engine challenging to maintain.
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#smooshgate and the Challenges of Web Compatibility
The broader JavaScript community responded vocally when Michael Ficarra, the author of the Array.prototype.flatten TC39 proposal, jokingly suggested renaming flatten as smoosh in response to a bug report that the new feature breaks old websites in nightly versions of Firefox.
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Webpack 2 Finalized with Focus on Improved Documentation
The final release of webpack 2, the popular JavaScript module and asset bundler, has arrived, bringing with it native support for ES2015 and vastly improved documentation. However, it's too early to tell if the new version will dramatically improve build times and file sizes.
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NativeScript 2.4 Brings Web Workers Specification
NativeScript 2.4 has been released with support for the Web Workers specification, along with Angular 2.2, Node 6, ES6, and ES7.
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NodeJS v7 Upgrades to V8 5.4
The Node.js Foundation has released Node.js v7, including the updated V8 5.4.
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Orion 12 Brings Full Support for ECMAScript 2015
The Eclipse Orion project team has released version 12, bringing full support for the ECMAScript 2015 Language Specification. Mike Rennie, Orion contributor, says the release continues to emphasise Orion's JavaScript tooling, and that along with support for ECMAScript 2015, the release includes improved project configuration capabilities, and support for eslintrc.* files.
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WebKit, V8, and Edge Improve JavaScript Implementations
WebKit, V8, and Microsoft Edge have each gotten a little closer to supporting the full ES2015 (ES6) spec and beyond. WebKit was the first browser engine to reach 100% on the Kangax Compatibility Table while V8 and Edge each added more features to their implementations.
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Node.js 6.0 Supports 93% of ES2015
Node.js 6.0 has been released, becoming the new current version. It comes with performance improvements, better test and documentation coverage, better security and wide support for ES2015.