LvivJS - conference organized within independent Ukrainian movement of Front-end Developers. The first CityJS conference took place in Kyiv, November 2012, and gathered more than 350 participants. After successful start of CityJS conferences in Kyiv it was decided to organize the same format conferences in regions. Lviv become the second city after Kharkiv were regional conference was organized. In 2016 we gathered more than 350 participants at Arena-Lviv stadium to share experience and knowledge. This year it will be fifths LvivJS conference.