We are an open group with meetups that can be presentations on a topic or informal hack/code/chat sessions.
We accommodate all experience levels through a variety of events.
For our hack/code/chat sessions: just show up, find an allocated table, sit with unfamiliar or familiar faces, introduce yourself, and do whatever you feel like in the JS-inspired environment. You most likely will learn something new with JS (framework, library, debugging strategies, etc.), meet cool people, get some stuff done, showcase some cool work you've done, or get help on some of your project.