Mathias Bynens is a web standards enthusiast from Belgium. This self-proclaimed Web standards fanboi has many passions: HTML, CSS, JavaScript, Unicode, performance and security.
Developer Relations at Opera, he likes to contribute to open source projects as Punycode.js, a way to represent Unicode with a limited character subset of ASCII supported by the Domain Name System. Take a look at it: https://mothereff.in/punycode
If you are passionate about JavaScript and Unicode you should check his twitter @mathias
Follow his talk with the slides he used