||- hoon||Produce a trap (a core with one arm $) and evaluate it.|
Produces a trap, a simple core like a gate, except not taking a sample.
|- is often used as a “recursion point” within another arm. First, set up any counters/faces which will be updated during recursion, then create our |- trap. This way, when we recurse back, we will not reset those counter values.
- |- takes one child:
- Some hoon expression to evaluate.