Mathias Bynens (@mathias) works as a freelance web developer in Belgium. He likes HTML, CSS, JavaScript and WPO. To help with those last two things, he created jsPerf a while ago. John-David Dalton (@jdalton): my first JavaScript project was a Super Mario Bros. game engine I made in high school. I have always been drawn to JavaScript and other ECMAScript based languages. I spend most of my time ti