Answers for "how to filter unique items in array in js"

39

javascript array unique values

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
Posted by: Guest on July-03-2020
4

get unique array javascript

// one liner solution to get a unique array by object id
[{_id: 10},{_id: 20}, {_id: 20}].filter((item, i, ar) => ar.findIndex(each => each._id === item._id) === i)
Posted by: Guest on August-29-2021

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