Question

How to create an array from arrow function that manipulate elements using Array.from() in JavaScript

Answer 1

var arr = Array.from([2, 5, 9], x => x + x);      

for (i = 0; i < arr.length; i++)
  document.write("arr[" + i + "] = " + arr[i] + "<br />");
 

/*
run:  

arr[0] = 4
arr[1] = 10
arr[2] = 18

*/

 

70+ SQL courses for beginners and professionals