Hi Brian. Thanks for reaching out. I understand. On Monday, August 14, 2023 at 4:11:56 PM UTC+9 Brian Candler wrote:
> On Friday, 11 August 2023 at 17:56:01 UTC+1 Shinya Sakae wrote: > > I often hear the term `shallow copy', but I don't know what `shallow > clone` means. > > > Don't worry: they are the same thing. > > When cloning a map, the keys and values are set using ordinary assignment, > as the description says. It means there is no recursive cloning of nested > structures. > > For example: assignment of a map ends up with two values pointing at the > *same* data structure: > https://go.dev/play/p/NzCII0hy92R > (that's why clone is needed in the first place: so you can > add/update/delete to the clone, without affecting the source map) > > Therefore, if you have an outer map containing inner maps as values, and > you clone the outer map, the clone will still refer to the same inner maps. > > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/3c8d4d61-5d81-4dd8-b042-d4333ae920d0n%40googlegroups.com.
