Javascript sort Method Challenge Bug?

1

Hi all,

I’m stuck on the sort Method challenge right now. I tried debugging my code for a while and couldn’t figure out what could possibly be wrong. I checked the solution and it was the same as my code. After scanning my code for typos and not finding any, I just tried deleting my code and copy-pasting the official solution, but even that doesn’t work. What’s going on here?

function alphabeticalOrder(arr) {
  // Add your code below this line
  return arr.sort(function(a,b) {
    return a > b;
  });
  // Add your code above this line
}
alphabeticalOrder(["a", "d", "c", "a", "z", "g"]);

Link to challenge: https://guide.freecodecamp.org/certifications/javascript-algorithms-and-data-structures/functional-programming/sort-an-array-alphabetically-using-the-sort-method/

2

Your code passed for me immediately - you may want to try Reset All Code and refreshing the page, maybe attempting in another browser.

1 Like
3

Thanks, I downloaded Firefox and it did the trick. This challenge doesn’t work for me in Chrome, Explorer, or Edge for some reason. I was a bit surprised by Chrome here.

4

You might want to try running Chrome in Incognito Mode or Safe Mode (if that still exists) and see if maybe an extension is causing you issues.

5

I just gave that a shot, and the challenge still doesn’t work, whether I use Incognito Mode or disable all my extensions. Weird stuff.

1 Like
6

Hello all,

this challenge still doesn’t work :frowning: is there any solution for chrome?

7

Chrome is fine, it’s the answer you are giving that is wrong.

The callback to sort should not return true or false — that will work on most browsers, but it is supposed to return -1 (or a negative number), 0 or 1 (a positive number).

Note because of the above, the hint is wrong, which I think is where the confusion comes from.

2 Likes
8

Hi again,

after @DanCouper answer, I checked some documentation and find some good explanation. you’re right and sort does not return -1 , 1 and 0 value. This example solution is totally missing some detail.

Solution;

function alphabeticalOrder(arr) {
  return arr.sort(); // sort default order is A-Z 
}
alphabeticalOrder(["a", "d", "c", "a", "z", "g"]);

Correction for get a hint documentation

function alphabeticalOrder(arr) {
  return arr.sort(function(a,b) {
    return (a > b) ? 1 : -1; // Compare values and if a > b return 1 otherwise return -1
    return 0 // Values equal
  });
}
alphabeticalOrder(["a", "d", "c", "a", "z", "g"]);
1 Like