array from number havascript code example

Example 1: js array from

console.log(Array.from('foo'));
// expected output: Array ["f", "o", "o"]

console.log(Array.from([1, 2, 3], x => x + x));
// expected output: Array [2, 4, 6]

Example 2: create array with number js

var foo = new Array(45); // create an empty array with length 45