Searching for implementation

Contributing to the ARIA Authoring Practices Guide

We believe that inclusivity and accessibility are of utmost importance to the open web platform. One of the ways that we empower the full diversity of Internet users is by ensuring that those with permanent disabilities and temporary limitations, can browse websites with assistive technologies. Writing accessible code improves the experience of browsing a website […]

Lessons Learned from a Year of Testing the Web Platform

The web-platform-tests project is a massive suite of tests (over one million in total) which verify that software (mostly web browsers) correctly implement web technologies. It’s as important as it is ambitious: the health of the web depends on a plurality of interoperable implementations. Although Bocoup has been contributing to the web-platform-tests, or “WPT,” for […]

CC BY-SA

Optimizing Scratch 3 Pen Blocks

Earlier this year, we shared our work on the launch of Scratch 3.0, a major version of the visual programming environment for children of all ages. The new version of Scratch marked a complete rewrite of the runtime in JavaScript leveraging open web APIs. In our previous post, we enumerated the many performance optimizations that […]

Widening the Web with ECMA-402: Our work on the Internationalization Extension to JavaScript

Inconsistencies across browser implementations have caused web authors and users headaches since the dawn of time (or at least Jan 1, 1970), but nowhere has that pain been felt more acutely than in the realm of language and regional internationalization and localization. We have an inclusion gap on the web. Web authoring tools structurally exclude […]

Test262 Helps Advance JavaScript Proposals to Standardization

Test262 is a conformance test suite for ECMAScript, the programming language on which JavaScript is based. Containing 36,103 individual tests at the time of this writing, Test262 ensures that different implementations of the language, such as the JavaScript engines in web browsers or stand-alone runtimes like Node.js or Moddable XS, agree on the minutiae of […]

Porting Scratch from Flash to JavaScript: Performance, Interoperability and Extensions

Last year we formed a team focused on using the growing number of new web APIs to build multimedia applications that push the edge of the web platform. Our main work in this area over the last 2 years has been with the wonderful team behind Scratch at MIT’s Lifelong Kindergarten Group (LLK), and with […]

CC BY

Charting Web Platform Interoperability in 2018

Bocoup has been a long-time contributor to the Web Platform Tests (WPT) project, helping spec writers draft testable specs and helping browser implementers test features for correctness and interoperability based on those specs. In 2018, we’ve made great strides improving the coverage of WPT, the ergonomics of writing and running tests, and the infrastructure necessary […]

CC BY-SA

The Eight-Month Omelette: adding a feature to one million conformance tests

The web-platform-tests project (WPT) houses over a million tests written to ensure our browsers provide a consistent experience of the web. WPT predates most of today’s popular JavaScript testing frameworks, so it implements one of its own: testharness.js. In December of 2017, I offered to extend testharness.js with a new feature. No one expected this […]

CC BY-SA

Announcing Test262 Report

Today we’re launching Test262 Report to provide JavaScript developers with up-to-date information on the state of new and existing language features across implementations. Test262 Report is based on daily runs of Test262, the ECMA-262 (“ECMAScript” or “JavaScript”) test suite, in nightly builds of JavaScript engines, and visualizes at-a-glance status of feature implementation progress. Taking a […]

New Test262 Import and Runner in WebKit

Bocoup recently facilitated an update to the WebKit project’s interaction with Test262. In this article, I’ll cover what this means for the WebKit project and the JavaScript ecosystem, as well as what exactly has been done in the WebKit project to help make this process more repeatable. Test262 is a project maintained by Ecma’s TC39. […]

Contact Us

We'd love to hear from you. Get in touch!

Mail

P.O. Box 961436
Boston, MA 02196