On Monday, 8 August 2022 at 11:35:48 UTC, pascal111 wrote: > The output of next code is the same to extent that we feel that > there's no difference between "only" and "[]", so what "only" > added here?: > > '''D > [1,2,3].writeln; > only(1,2,3).writeln; > ''' > > output: > > [1, 2, 3] > [1, 2, 3] `only(1,2,3)` doesn't use GC. `[1,2,3]` allocate GC array.