Please start by reading the quickstart, because it explains a lot of things.
These simple examples show how to use the API
These show how a simple evolve-based program looks like.
Machine code generation
These show how node-evolve can explore parameters or build new algorithms written in compiled programming languages.
(warning: this is experimental and still work in progress! the C and OpenCL syntax are not fully implemented yet).
Please see node-substrate project.