I want given array of unique data given those example

Question

I have one array like var data= [1,1,3,4,2,4,5,6,7,5,4] and I need the unique array of data without a loop or any Lodash and underscore js function

`console.log([...new Set(data)]);`....? http://jsfiddle.net/1wk9mxbq/ May you please show your attempt? — briosheje, Oct 15 '18 at 12:07

score 2 · Answer 1 · answered Oct 15 '18 at 12:07

2

Use a Set

 var data= [1,1,3,4,2,4,5,6,7,5,4] ;
 const unique = [...new Set(data)];
 console.log(unique);

answered Oct 15 '18 at 12:07

baao

If you want ES5, you can use `data.filter((value, index, array) => array.indexOf(value) === index);` – lloydaf Oct 15 '18 at 12:42

score 1 · Accepted Answer · answered Oct 15 '18 at 12:11

1

for ES6/ES2015: Using the Set, the single line solution is:

var data= [1,1,3,4,2,4,5,6,7,5,4] ;
var uniqueItems = Array.from(new Set(data);

Or shortened using spread operator

var uniqueItems = [...new Set(data)];

answered Oct 15 '18 at 12:11

Osama

score 0 · Answer 3 · answered Oct 15 '18 at 12:13

0

You can use uniq() of Underscore.js as below. This also have sort option.

import * as _ from 'underscore';

var data= [1,1,3,4,2,4,5,6,7,5,4];
var unique = _.uniq(data);

answered Oct 15 '18 at 12:13

Harun Or Rashid

3 Answers3