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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When the team that maintains the gov.uk website faced the issue of updating their old and outdated jQuery dependency, they decided instead to get rid of it altogether.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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ECMAScript's Top-Level Await Proposal Implemented in V8, Babel and Webpack
The top-level await's ECMAScript proposal, which reached Stage 3 last year, is now implemented in the V8 JavaScript engine, and supported by Webpack and Babel. Top-level await enables dynamic dependency pathing, resource initialization, and dependency fallbacks at module import time. Top-level await results in a non-deterministic module execution order.
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JavaScript Private Class Fields and Methods: Three New Draft Specifications
Private class fields are finally coming to JavaScript with no less than three separate TC39 proposals that define the new capabilities.
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TypeScript 3.3 Improves Calling Union Types and Build Times
The TypeScript team continues its bi-monthly release cadence with version 3.3 of TypeScript, improving the behavior for calling union types and the performance of incremental file watching for composite projects. The team also announced their roadmap for the next six months.
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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.