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@roshanca roshanca/unique.js
Last active Jun 22, 2018

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unique array
const arr = ['aaa', 'bbb', 'aaa', '111'];
const uniqueArr = arr.filter((item, index) => {
return arr.indexOf(item) === index;
});
console.log(uniqueArr); // ['aaa', 'bbb', '111']
const simpleUnique = function(arr) {
return [...new Set(arr)]
}
console.log(simpleUnique(arr)); // ["aaa", "bbb", "111"]
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