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]);
newArray.push(result);
}
// Add your code above this line
return newArray;
};
var new_s = s.myMap(function(item){
return item * 2;
});
Your browser information:
User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36
.
Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/functional-programming/implement-map-on-a-prototype