Tell us what’s happening:
Pls dont know whats wrong with my code.
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 a = 0; a < this.length; a++){
newArray.push(this[a]);
}
// Add your code above this line
return newArray;
};
var new_s = s.myMap(function(item){
return item * 2;
});
console.log(new_s)
`
**Your browser information:**
User Agent is: <code>Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0</code>.
**Link to the challenge:**
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/functional-programming/implement-map-on-a-prototype
Thank you for the quick response, pls I’m still finding a bit challenging to understand. check the code below if I’m doing it correctly.
// the global Array
var s = [23, 65, 98, 5];
Array.prototype.myMap = function(callback){
var newArray = [];
// Add your code below this line
for (let a = 0; a < this.length; a++){
newArray.push(callback[a]);
}
// Add your code above this line
return newArray;
};
var new_s = s.myMap(function(item){
return item * 2;
});
Do you remember how to pass an argument in a function? Hint: not like that
Also, if it was the correct way you would be transforming the value of a not the value in the array - You still need to use the notation to reference the value in the array
Thank u for jugging my memory on how to pass an argument in function exactly what i was missing, i managed to get it to work with your help.
// the global Array
var s = [23, 65, 98, 5];
Array.prototype.myMap = function(callback){
var newArray = [];
// Add your code below this newArray;
};
var new_s = s.myMap(function(item){
return item * 2line
for (let a = 0; a < this.length; a++){
newArray.push(callback(this[a]));
}
// Add your code above this line
return ;
});