How can you create an array of 2 or 3 dimensions?

Hi!
How can you create an array of 2 or 3 dimensions?

var myVariable =

Thanks!

Pablo

let array = [ ]
let array2 = [ ]

array2.push(“something”)
array2.push(“somethingElse”)

array.push(array2)

Here is a good place to learn more about arrays in javascript:
https://www.w3schools.com/js/js_arrays.asp

Thank you! I solved it like this !!