ludic/docs/language/list/list-len.md

id	name	category	kind	tokens	sig	tip	order	ns	member
list-len	List.len	list	namespace-method	List.len	List.len(s) -> int	The number of elements in a slice.	0	List	len

Returns how many elements s currently holds. It reads the slice's length, which changes as you List.push and List.pop, and is the same value as the bare len(s). Use it to bound a loop, test for emptiness, or find the last index with List.len(s) - 1.

Parameters:

• s — the slice to measure

program CountEnemies {
  state CountEnemiesState {
    enemies: []int = new []int
  }

  handler Report(count_enemies_st: CountEnemiesState) phase Update {
    let n = List.len(count_enemies_st.enemies)
  }
}