ents.GetCount
Description
Gives you the amount of currently existing entities.
Similar to #ents.GetAll() but with better performance since the entity table doesn't have to be generated.
If ents.GetAll is already being called for iteration, than using the # operator on the table will be faster than calling this function since it is JITted.
Arguments
1 boolean IncludeKillMe = false
Include entities with the FL_KILLME flag. This will skip an internal loop, and the function will be more efficient as a byproduct.