Var a= New Array(3) vs Store 3 in an array a.

Question

How do I store an integer value 3 in an Array with “New Array”?

Answer 1

You could do this. A one element array filled with a 3.
var a = new Array(1).fill(3);

Answer 2

sorry I thought this QA discussion part is for JS only. I am referring to JS.

Answer 3

You should say what language you have this questions (and use the tag) so people can help you easier.