Function ambient_element::use_memo_with

pub fn use_memo_with<T: Clone + ComponentValue + Debug + Sync + Send + 'static, D: PartialEq + Clone + Sync + Send + Debug + 'static>(
    hooks: &mut Hooks<'_>,
    dependencies: D,
    compute: impl FnOnce(&mut World, &D) -> T
) -> T

A computation that runs once on spawn, and when dependencies change. The computation is not re-run if the dependencies are the same - that is, the computation is memoized.

Note: using external captures for the create function will not cause the memoized value to be recalculated when the captures change.

Prefer to route as much as possible through the dependencies; these dependencies are available as arguments to compute.