example.js

const array = [1, 2, 3, 4, 5];

function copyAndMultiplyBy2(array) {
  var newArray = [];
    for (var i = 0; i < array.length; i++) {
        newArray.push(array[i] * 2);
    }
  return newArray;
}


function copyAndDivideBy2(array) {
  var newArray = [];
    for (var i = 0; i < array.length; i++) {
        newArray.push(array[i] / 2);
    }
  return newArray;
}


const arrayMultiplied = copyAndMultiplyBy2(array);
const arrayDivided = copyAndDivideBy2(array);