a proposal for collection literal val array: Array...

# language-proposals

[rrader]

a proposal for collection literal
val array: Array<Long> = [1, 2, 3]
val list: List<Long> = [1, 2, 3]
val map: Map<String, Long> = ["a" -> 1, "b" -> 2]
so, if type is specified we can use [ ... ] literal

[benleggiero]

I'd also like to see val iDontCareWhatCollectionTypeThisIs = [1, 2, 3]

And while I'd prefer that arrow syntax over the nothing we have now, I'd love it even better as val map: ["a": 1, "b": 2]

[voddan]

Why do you need arrays, apart from annotations?

[benleggiero]

Interoperability with Java and other APIs that take arrays and do dirty things to them. Usually low-level stuff like graphics APIs will take in an array and return nothing, just mutate its contents because that's slightly faster.