Here's a case that comes up for me:
type table map[string]map[string]string
func (t table) add(x, y, z string) {
if t[x] == nil {
t[x] = make(map[string]string)
}
t[x][y] = z
}
func (t table) get(x, y string) string {
return t[x][y]
}
The fact that t[x] can be indexed even if it hasn't been created makes this
much simpler.
On Tue, Oct 17, 2017 at 12:52 AM Alex Dvoretskiy <advoretski...@gmail.com>
wrote:
> Hello, Golang Nuts!
>
> I have an interesting question about maps. What is the possible usage of
> nil maps, which can be declared like "var m map[string]int"? You can't
> write to nil map but have an option to create it.
>
> Perhaps there is no use at all and this is just language specific feature?
>
> Thank you.
>
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