How do I remove duplicate in array and bring count?

Question

I am accessing array which is in loop through:

var author = $$('.author').map(e=>e.textContent);

I want this to remove duplicate from array from authors list and fetch count and display on the front end. Does anyone know how to achieve this?

[How much research effort is expected of Stack Overflow users?](https://meta.stackoverflow.com/a/261593/3082296) — adiga, Dec 23 '20 at 06:43
Adiga has a point. And I also feel I should not have updated it. — Imran Rafiq Rather, Dec 23 '20 at 06:44

score 1 · Answer 1 · answered Dec 23 '20 at 06:34

1

Convert it to a set then back to an array:

[... new Set(author)];

answered Dec 23 '20 at 06:34

Allan Wind

4

Please vote to close obvious duplicates instead of answering them – adiga Dec 23 '20 at 06:42

1 Answers1