Shijun He, aka Hax, has 20 years of IT industry experience, loves open source, open standards and technology preaching. He is a TOC member of OpenAtom Foundation, invited expert of Ecma-TC39, worked in Shanda Innovation Institute, Baixing and 360 successively. As a web front-end and JavaScript language technical expert, he has made contributions to a number of technical standards and open source projects in related fields. He has served as a producer, lecturer, guest and host at various technical conferences and community events.