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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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Profiling and Optimizing V8 Memory Consumption
For the last few months, the V8 team has focused on reducing the memory consumed by the V8 engine, including work on the new Ignition interpreter, and improvements to V8’s parser and compilers. A key enabler of this process was profiling V8 memory usage using specific tools against a benchmark, as explained by V8 engineers Ulan Degenbaev, Michael Lippautz, Hannes Payer, and Toon Verwaest.
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V8's New JavaScript Interpreter Improves Memory Consumption
Google's V8 JavaScript engine has a new interpreter, called Ignition, that hopes to reduce the compiler's memory consumption and reduce complexity. Chrome 53 will start using Ignition on Android devices with 512 MB of RAM or less.
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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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V8 JavaScript Engine 5.1 Brings More ECMAScript Compliance, WASM Support
Google has announced version 5.1 of its V8 JavaScript engine, which improves compliance with the ECMAScript 2017 draft specification and adds preliminary support for WASM, a low-level portable bytecode aimed to enable near-native execution speed.
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V8 4.9 Released with 91% ECMAScript 2015 Support
Google has released version 4.9 of the V8 JavaScript engine, bringing it to 91% completion with ECMAScript 2015.
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ChakraCore Opens Up Microsoft Edge’s JavaScript Engine
Microsoft’s JavaScript engine core components will be open-sourced next month, Microsoft announced at JSConf US. ChakraCore will provide a fully-fledged, self-contained JavaScript virtual machine, Microsoft say, that includes everything that is required to parse, interpret, compile and execute JavaScript code without dependencies on Microsoft Edge internals.
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Node.js Release 4.0, First Combined Release With io.js
The Node.js Foundation has released Node.js v 4.0, combining Node.js and io.js into one single codebase. The all-new Node.js contains many new ES6 features enabled by default, as well as V8 v4.5, with accompanying new features.
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io.js Team Releases 2.0, Debates Joining Node Foundation
The io.js team has released version 2.0 bringing with it the upgraded V8 JavaScript engine. The upgrade moves classes out of staging, with the class keyword usable in strict mode without flags, as well moving object literal enhancements out of staging, making shorthand method and property syntax usable, and implementing rest parameters in staging behind the --harmony-rest-parameters flag.
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Google Proposes StrongMode and SoundScript, Boosting V8 Performance
Google's Chrome team has proposed two extensions to JavaScript in a move to boost the performance of their V8 JavaScript Engine. StrongMode will limit the JavaScript language to only allow parts with guaranteed performance. SoundScript will add user-facing types to JavaScript, not at compile-time, but at run-time in the browser.
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Node.js Fork JXcore Goes Open Source
Node.js fork JXcore has gone entirely open source this week. Oguz Bastemar, CTO for the company behind JXcore, announced the news saying "We want JXcore to be a community driven open-source and open-governance project." JXcore's latest release also features a multiple JavaScript engine design, including a wrapper for both SpiderMonkey and V8 engines.
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Vivaldi: A New Browser Created by Former Opera Developers
A team of former Opera developers along with their ex-CEO Jon von Tetzchner have created a new browser called Vivaldi.
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1.0.x Release for io.js
The io.js team has released version 1.0 -- but the versioning does not suggest the platform is "production ready." Despite overtaking Node, io.js clarifies the release in its own FAQ: "The choice to release as 1.0.x was not to signify that io.js should be considered production-ready, but because it was a significant enough release from Node.js to warrant a major version increment," it says.
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Challenges Performing Background Compilation in V8
This article includes details on the recently background compilation introduced in V8, Chrome’s JavaScript engine.
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Dart 1.1 Pushes Performance Even Further
The recently released Dart 1.1 comes with better performance for the dart2js compiler and improves support for the server-side development. The language itself is pretty much on hold.