Remove Array Duplicates in ES6
const array = ['🐑', 1, 2, '🐑','🐑', 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:
// ['🐑', 1, 2, 3];
https://www.samanthaming.com/tidbits/43-3-ways-to-remove-array-duplicates/