I want to separate a dictionary into an array of keys and an array of values, with the only condition that the order of each element in the arrays must agree.
So I would like to know if this is safe:
let dictionary = [4: "4", 5: "5", 8: "8"]
let keys = Array(dictionary.keys)
let values = Array(dictionary.values)
// keys = [5, 4, 8]
// values = ["5", "4", "8"]
Since Keys and Values seem to be backed by original Dictionary (or more precisely, its Variant
) and so they share the same Collection.indices.
Though I'm unsure how future-proof this is.
If this is not safe, I would like to ask for a swift-y way to do it.