Removing Array Duplicates in ES6

unique.ts

const array = [1,2,3,3,5,4,8,9,5,2,3,1,2,2,1,1,3,6,4,8,9,1,2,5,3,4,6,9,7,8,9] as const;
const uniqueArray = Array.from(new Set(array)) satisfies typeof array;

const uniqueArray2 = array.reduceRight<number[]>((acc, cur) => acc.includes(cur) ? acc : [cur, ...acc], []);