Posts tagged javascript

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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 […]

Ergonomic Testing with Webpack, Part One, File Resolving

This is part one in a series on the intersection of module bundlers and testing frameworks. Our focus will be webpack and jest but the techniques explored here can be reused with other tools as well. Modern websites and applications are routinely built by combining hundreds of small JavaScript modules. In order to increase the […]

The Next Steps For TC39

It’s been more than an year since I started attending TC39 meetings, and this most recent meeting felt much like the first, as I faced a new personal challenge: I went there as the acting chair. TC39 is a group of almost 50 highly skilled professionals, each with very strong positions on the existing form […]

Equality and Relational Operators: Comparing the strange relationship between null and 0

Recently I saw a tweet about the relationship between values in JavaScript saying that greater or equals means nothing. The tweet reported the following results: null >= 0 // true null > 0 // false null == 0 // false My experience with the JavaScript language makes me believe that everything has a meaning, even […]

Looking at JavaScript with “new” eyes: Digging into the specs to learn more about the new operator

To me, the JavaScript language is as beautiful and unexpectedly wondrous as a mini donkey. If I could propose a new cover for the book Beautiful JavaScript, I would choose this one: The reason I find JavaScript beautiful is that there’s something new to learn everyday. For example, recently I learned some surprising facts about […]

Introducing the Moebio Framework

The Bocoup Data Visualization Team is excited to announce the first public release of the Moebio Framework in collaboration with Santiago Ortiz and Moebio Labs. The Moebio Framework is a JavaScript Toolkit for analyzing and visualizing data in the browser. At the core of this JavaScript framework is a set of data types and functions […]

JavaScript: Promote JS

Over the course of the following week, I will be adding these to all of the appropriate JavaScript articles I’ve published.

JS Truthiness

'0' && ('0' == false) // true We’ll just have to agree to disagree, javascript. {: .space} Update: this is what I mean by “truthy” and “falsy”: function truthy(x) { return !!x; }; function falsy(x) { return !x; };

PollenJS Contributor Announcement

I’m pleased to announce the addition of Elijah Grey as a core contributor to the PollenJS  project. Eli has an exceptional (albeit short)  background in JavaScript development using bleeding-edge technology. Just the kind of guy we like to have around bocoup.com. A few thing that Eli and I have already begun hashing out: Modular loading […]