javascriptLogic errorEasy

Sorting mixed case words orders capital letters before lowercase

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BugFind the bug and fix the code

What it should do

sort_names_alphabetical(names) sorts strings in case-insensitive alphabetical order. Example: sort_names_alphabetical(["zebra", "apple", "Banana"]) → ["apple", "Banana", "zebra"].

What happens instead

sort_names_alphabetical(["zebra", "apple", "Banana"]) returns ["Banana", "apple", "zebra"] instead of ["apple", "Banana", "zebra"].

function sort_names_alphabetical(names) {
  return names.sort();
}

Test a custom input to verify an edge case (e.g. empty lists, negative numbers, duplicates).

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Hint 2

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Hint 3

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This bug belongs to the logic errors pattern

The wrong operator, an inverted condition, a formula the right way round but backwards.

Learn the logic errors pattern Step through your own code

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javascriptLogic errorEasy

Sorting mixed case words orders capital letters before lowercase

Time: 0:00

BugFind the bug and fix the code

What it should do

sort_names_alphabetical(names) sorts strings in case-insensitive alphabetical order. Example: sort_names_alphabetical(["zebra", "apple", "Banana"]) → ["apple", "Banana", "zebra"].

What happens instead

sort_names_alphabetical(["zebra", "apple", "Banana"]) returns ["Banana", "apple", "zebra"] instead of ["apple", "Banana", "zebra"].

function sort_names_alphabetical(names) {
  return names.sort();
}

Test a custom input to verify an edge case (e.g. empty lists, negative numbers, duplicates).

⏱️0:00

Hints

🏆 0 hints = Flawless Solve

Think & Test Cooldown

2:00 remaining

Take a moment to read the bug symptom and trace the code with Run & Check before unlocking Hint 1.

Hint 2

Unlocks after Hint 1

Hint 3

Unlocks after Hint 2

This bug belongs to the logic errors pattern

The wrong operator, an inverted condition, a formula the right way round but backwards.

Learn the logic errors pattern Step through your own code

Sorting mixed case words orders capital letters before lowercase

What it should do

What happens instead

More logic errors to practise

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Sorting mixed case words orders capital letters before lowercase

What it should do

What happens instead

More logic errors to practise

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