unique array in javascript
const uniqueArr = [...new Set(arr)]
unique array in javascript
const uniqueArr = [...new Set(arr)]
js unique string array
const uniqueStrArr = (value, index, self) => {
return self.indexOf(value) === index;
}
// usage example:
var arr = ['a', 1, 'a', 2, '1'];
var unique = arr.filter(uniqueStrArr);
console.log(unique); // ['a', 1, 2, '1']
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