JS Array Constructor
Array literals are usually clearer than the Array constructor. Array.from can generate items from a length and a function.
Where to run this
This example uses the JavaScript console playground. Select Run to execute it; the example does not run on this lesson page.
A practical example
const seats = Array.from({length: 3}, (_, index) => index + 1);
console.log(seats);
What happens
The result is [1,2,3].