1 files changed, 4 insertions, 0 deletions
diff --git a/src/prelude/array.ts b/src/prelude/array.ts
index a2a6bbd4c6..abef6ca039 100644
--- a/src/prelude/array.ts
+++ b/src/prelude/array.ts
@@ -17,3 +17,7 @@ export function intersperse<T>(sep: T, xs: T[]): T[] {
 export function erase<T>(x: T, xs: T[]): T[] {
 	return xs.filter(y => x !== y);
 }
+
+export function unique<T>(xs: T[]): T[] {
+	return [...new Set(xs)];
+}