Implement map on a Prototype- how to indicate the array

Tell us what’s happening:
Hello, I don’t know how to indicate the array that I want to iterate through, in the code.
I used the keyword Array, which I don’t think is correct…

Your code so far

// the global Array
var s = [23, 65, 98, 5];

Array.prototype.myMap = function(callback){
  var newArray = [];
  // Add your code below this line
  for (let i = 0; i<Array.length; i++){
    let result = callback(Array[i]);
  // Add your code above this line
  return newArray;


var new_s = s.myMap(function(item){
  return item * 2;

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