Understanding "defined" variables

Question

Hi,

I'm currently working on a problem with an Array.

I was wondering if anyone can explain to me why 'breakfasts' isn't defined - when there is a defined array for this. Is it because it is in the main function and the {, are closed?

I'm also unsure of when you need to use the this. ... lists.

It's all very confusing!

Any feedback on this code would be greatly welcomed:

PROBLEM:

The array you are given represents the menu of breakfast options available at the hotel.
The Chef decided to replace one of the options with "Fluffy Pancakes".
Write a program to take the index as input, replace the element with that index with "Fluffy Pancakes", and output the new menu to the console as an array.

Sample Input
2

Sample Output
[
'Cinnamon Doughnuts',
'Waffles',
'Fluffy Pancakes',
'Chorizo Burrito',
'French Toast'
]

The element with index 2 has been replaced in the output array.

CODE
(BELOW THE COMMENTS IS WHAT I HAVE WRITTEN)

function main() {
var breakfasts = ['Cinnamon Doughnuts', 'Waffles', 'Granola', 'Chorizo Burrito', 'French Toast'];
var index = parseInt(readLine(), 10)

//replace the corresponding element by "Fluffy Pancakes"

//output the menu to the console
}

function cafe (breakfasts, index){
this.breakfasts = breakfasts;
this.index = index;

};

let newMenu = cafe.breakfasts.splice (index, 1, "Fluffy Pancakes");

console.log(newMenu);

Answer 1

Leanne Smith

breakfasts is an array and you just need to store new breakfast item in that array and print breakfasts

so you just need to do like this

breakfasts [index] = 'Fluffy Pancakes';

console.log(breakfasts);

-------------------
This is complete solution:-
-------------------

function main() {
var breakfasts = ['Cinnamon Doughnuts', 'Waffles', 'Granola', 'Chorizo Burrito', 'French Toast'];
var index = parseInt(readLine(), 10)

//replace the corresponding element by "Fluffy Pancakes"

//output the menu to the console
breakfasts[index] = "Fluffy Pancakes";

console.log(breakfasts);
}

Answer 2

Leanne Smith

Delete this one

https://www.sololearn.com/Discuss/2738476/?ref=app

Answer 3

Thanks for letting me know the solution.

I would never have thought to do that!

Answer 4

This is how i did it.

function main() {
var breakfasts = ['Cinnamon Doughnuts', 'Waffles', 'Granola', 'Chorizo Burrito', 'French Toast'];
var index = parseInt(readLine(), 10)
breakfasts.splice(index,1,'Fluffy Pancakes');
console.log(breakfasts);
}