array unit set
const array = ['a' , 1, 2, 'a' , 'a', 3];// 1: 'Set'[...new Set(array)];// 2: 'Filter'array.filter((item, index) => array.indexOf(item) === index);// 3: 'Reduce'array.reduce((unique, item) => unique.includes(item) ? unique : [...unique, item], []);// RESULT:// ['a', 1, 2, 3]
2024. 6. 5.
