How to properly write JS array in Eclipse?

Question

Eclipse

Hello.
I study JS and work in Eclipse. I used to work in sublines and visual studio and always made arrays like this.
let names = ["Катя", "Вова", "Таня"];
But in eclipse, this method throws an error and requires the correct type syntax
int[] nums = new int[] { 1, 2, 3, 5 };

Answer 1

What nonsense?
int[] nums = new int[] { 1, 2, 3, 5 };- this is not JS syntax