The Array. of() method creates a new Array instance from a variable number of
arguments, regardless of number or type of the arguments. The difference between
Array. of() and the Array constructor is in the handling of integer arguments: Array.
Array.of(7); // [7]
Array.of(1, 2, 3); // [1, 2, 3]
Array(7); // [ , , , , , , ]
Array(1, 2, 3); // [1, 2, 3]