What is a unique value in an array?
If we want to filter out an element in a JavaScript array then we will use the method of The array indexOf() which returns a first index where the given elements can be found in that array or if the statement is not true then we can filter out all values and we'll get all unique values in that array. This method will loop through array and leave the entries which pass the given function (Unique).
javascript find unique values in array
By Batman
on Jul 03, 2020
// usage example:
var myArray = ['a', 1, 'a', 2, '1'];
var unique = myArray.filter((v, i, a) => a.indexOf(v) === i);
// unique is ['a', 1, 2, '1']
17
how to find unique elements in array in javascript
By CodeBaron
on Jun 01, 2022
let a = ["1", "1", "2", "3", "3", "1"];
let unique = a.filter((item, i, ar) => ar.indexOf(item) === i);
console.log(unique);
0
array unique values javascript
on Jan 01, 1970
const myArray = ['a', 1, 'a', 2, '1'];
const unique = [...new Set(myArray)]; // ['a', 1, 2, '1']
0
javascript get unique values from array
By PandaNïrio
on Jun 01, 2022
const myArray = [1,2,3,1,5,8,1,2,9,4];
const unique = [...new Set(myArray)]; // [1, 2, 3, 5, 8, 9, 4]
const myString = ["a","b","c","a","d","b"];
const uniqueString = [...new Set(myString)]; //["a", "b", "c", "d"]
0
javascript array unique values
By Outstanding Oystercatcher
on Jun 01, 2021
var arr = [55, 44, 65,1,2,3,3,34,5];
var unique = [...new Set(arr)]
//just var unique = new Set(arr) wont be an array
0
In these mentioned codes we've set a JavaScript array map function to define one object with the repeated arrays and It'll filter out all duplicates. You can run these codes into JavaScript runners
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