Yukihiro Nakadaira wrote:
> :echo jsondecode('{"":"x"}')
> E713: Cannot use empty key for Dictionary
>
> Will Vim allow empty key?
Hmm, if you take the standard literally I suppose it allows for an empty
key. In practice it's an indication something went wrong.
Why are you asking, do you see a practical application for it?
The standard also allows for duplicate names, even though in practice
that doesn't work. So even though it's valid JSON, it doesn't mean it's
a valid value after converting from JSON to Vim types.
So the error is actually correct, it's not saying the JSON is invalid,
it's saying the result in Vim types is invalid.
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