I have a Map of <String, Object>, where the ...

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[purereborn]

I have a Map of <String, Object>, where the key string can be converted into an integer index <Int, Object> then I want to sort by the Int index and order the object to get a List<Object>.

Is there a functional way to write that? Can I do a map on a Map and get a Map as the result?

[Ruckus]

The mapping code you're looking for would be map.mapKeys { it.key.toInt() }, but that would not be the most efficient way to solve your problem (see the answers posted).