Answers for "js get amount of every unique element in an array"

5

how to find unique elements in array in javascript

let a = ["1", "1", "2", "3", "3", "1"];
let unique = a.filter((item, i, ar) => ar.indexOf(item) === i);
console.log(unique);
Posted by: Guest on May-17-2020
7

unique values in array javascript

let uniqueItems = [...new Set(items)]
Posted by: Guest on September-06-2020

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