QuickJS to be Updated

This is an engine the supports the ES2019 specification and additional mathematical extensions, such as the BigInt and BigFloat types
23 January 2020   405

French mathematician Fabrice Bellard, who once founded the QEMU and FFmpeg projects, has published an update to the QuickJS compact embedded JavaScript engine he is developing. The engine supports the ES2019 specification and additional mathematical extensions, such as the BigInt and BigFloat types. In performance, QuickJS is noticeably superior to its existing counterparts (XS by 35%, DukTape more than twice, JerryScript three times, and MuJS seven times). The project offers a library for embedding the engine, a qjs interpreter for running JavaScript code from the command line, and a qjsc compiler for generating self-contained executable files. The code is written in C and distributed under the MIT license. More details about the project can be found in the text of the announcement of the first issue.

The new version adds experimental support of the BigDecimal type, which allows you to manipulate decimal numbers with arbitrary precision (analogue of BigInt for numbers with base 10). Updated implementation of operator overloading. Added examples of programs for effectively calculating the Pi number up to a billion decimal places (as a mathematician, Fabrice Bellar is known as the creator of the fastest formula for calculating the Pi number).

Get more at the official website of the author.

Frontend News Digest 21 - 27.03

Embrace modern image formats, how to indicate scroll postion on page with CSS, integrate TypeScript with GraphQL and more
27 March 2020   372

Greetings! I hope your week went great! Here's new frontend technologies news digest.

Learn how to use the currentColor value in CSS, how to debug a child process in Node and Gatsby.js with Chrome, how to Debug a Node.js Application: Tips, Tricks and Tools and other cool, useful and demanded things, related to all parts of frontend development.

Guides

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Learn how modern images formats and <picture> element can reduce image sizes

  • How to use the currentColor value in CSS

A tutorial on a basic CSS feature, great for newbies

  • Indicating Scroll Position on a Page With CSS

This guide will teach you how to indicate scroll position, using only CSS

  • How to debug a child process in Node and Gatsby.js with Chrome

Learn how to patch `jest-worker`package used by Gatsby.js and by patching enable child process debugging using Chrome Dev Tools in this tutorial

  • Integrating TypeScript with GraphQL

Learn how to integrade TypeScript with GraphQL

  • How to Debug a Node.js Application: Tips, Tricks and Tools

Massive tutorial on Node app debugging, with some tips, that can be useful even for skilled developers

Articles

  • Full Third-Party Cookie Blocking and More (in Safari)

Safari’s Intelligent Tracking, has been in beta for some time, introduces significant privacy changes, including cross-site cookies now being blocked by default

Video

  • The Complete AEA DC 2019 Now Online

Giant number of different interesting speeches from An Event Apart session, that was realeased special in a pack for you to stay home

Updates

  • uppload

JS image uploader with 30+ plugins 

  • Node-SQLite

SQLite client library for Node.js applications 

  • Backstage

Open platform for building developer portals