let arr1 = ['a', 'a', 'b']; let p1 = {name: 'Peter', age: 21}; let p2 = {name: 'James', age: 23}; let p3 = {name: 'James', age: 23}; let arr2 = [p1, p2, p3]; let set1 = new Set([...arr1]); let set2 = new Set([...arr2]); console.log(set1); console.log(set2);