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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", therefor
by int_19h 1y 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 1y agoThat is not true, though. Reading from a nil map panics, and reading from an empty map does not.
- int_19h 1y agoIt 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 https://go.dev/ref/spec#Map_types: > A nil map is equivalent to an empty map except that no elements may be added.