Lil is the scripting language ofDecker. It is strongly influenced by bothLua, an imperative language popular for embedding in tools and game engines, andQ, a functional language in the APL family used with time-series databases. Lil is easy to learn and conventional enough not to ruffle any feathers for users with prior programming experience, but also includes pleasant surprises like implicit scalar-vector arithmetic and an integrated SQL-like query language. A few lines of Lil can go a long way.
This page provides a browser-local environment for experimenting with Lil. As within Decker, the interpreter's speed is artificially capped, and it periodically yields to the browser to ensure liveness.