Producing a set of strings from a list | CUE

Noam Dolovich

commented cue

This Commented CUE demonstrates how to produce a list of unique strings from a list of strings that might include duplicate values.

package example

import "list"

stringList: ["d", "a", "b", "a", "c", "b", "b"]

stringSet: {
	let map = {for v in stringList {(v): _}}
	list.SortStrings([for k, _ in map {k}])
}

$ cue eval
stringList: ["d", "a", "b", "a", "c", "b", "b"]
stringSet: ["a", "b", "c", "d"]

It is not strictly necessary to sort the elements of the set. We do this to ensure a deterministic output.

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