one fable-low hijack cell
pair forth / j
envelope en_pipe
ordering BA
effort low
English with pipe '|' — '{X} | {Y}'
verdictpicked forth (first-offered)
· classifierA
· tiernone
response (200 chars)
# `J` in Forth
`J` is a word that pushes the **index of the next outer loop** onto the stack. It's used inside nested `DO ... LOOP` structures.
## Stack Effect
```
J ( -- n )
```
## Usage
- `I` g
neighbors