Check if resource at given index is active; A resource is active if it has been loaded during this cycle.
An active resource can be fetched using opIndex.
For the looser variant, which would return true also if the resource is still loaded in arena,
even if not recently loaded, see isAlive.
Check if resource at given index is active; A resource is active if it has been loaded during this cycle. An active resource can be fetched using opIndex.
For the looser variant, which would return true also if the resource is still loaded in arena, even if not recently loaded, see isAlive.