[JS] Array 중복제거

new Set 이용하기

const arr = [
    { code: 'a', name: '가나다' },
    { code: 'b', name: '라마' },
    { code: 'a', name: '가나다' },
    { code: 'c', name: '바사' }
];

const newArr = [...new Set(arr.map((item) => JSON.stringify(item)))].map((item) => JSON.parse(item))