The Next Steps For TC39

The Many Faces of Functions in JavaScript

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

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

Sponsoring Diversity Scholarships for BrazilJS

Promovendo bolsas pela diversidade no BrazilJS

Practicing the new world language skills

Praticando as linguagens do novo mundo

Leo Balter is an Open Web Engineer at Bocoup, and is a leader in the open source community for his work on various projects that have shaped the direction of the open web. He is a consultant for Bocoup’s clients, helping them to improve their projects using open web technologies and open source methodology.

He has worked with web industry leaders including Google and Mozilla, and is part of the [JS Foundation](https://js.foundation/), previously known as jQuery Foundation. Among his many open source projects, Leo is a dev lead on [QUnit](http://qunitjs.com), a JavaScript unit testing framework used by jQuery, Lodash, Ember.js, and many other projects. 

He represents the [JS Foundation](https://js.foundation/) at [TC39](https://github.com/tc39) — the technical committee that designs the language specification for JavaScript. TC39, of [ECMA International](http://www.ecma-international.org/), releases the [standards for the language](https://tc39.github.io/ecma262), and as a delegate on the committee, Leo is one of the alterers of the JavaScript language. He is helping to define the new specifications of JavaScript’s international standard and asserting the language is properly tested on [test262](https://github.com/tc39/test262), the official tests repository.

Hailing from Brazil, Leo embodies the global nature of the open web community, having organized conferences in Rio de Janeiro before moving to Bocoup’s headquarters in Boston. He continues to work with and connect with JavaScript web development communities in Brazil, and is involved every day with Boston’s communities of developers. 

His passion lies in making JavaScript the most useful as it can be, so that it can be used and consumed by everyone with great impact. As an influencer in the open web world, Leo is paving the way for the developers and tools of open source’s future.