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int_19h 3 days ago

It is different from nil, but then again a nil map in Go behaves like an empty map when reading from it. If you consider serialization to be "reading", therefore, it makes sense to interpret it accordingly.

leononame a day ago | parent [-]

That is not true, though. Reading from a nil map panics, and reading from an empty map does not.

int_19h a day ago | parent [-]

It doesn't. E.g. this prints 0:

var m map[string]int = nil fmt.Println(m["foo"])

The language spec is also pretty clear on this; https://go.dev/ref/spec#Map_types:

> A nil map is equivalent to an empty map except that no elements may be added.