javascriptLogic errorEasy

Single equals assignment in condition grants admin access to all

Time: 0:00

BugFind the bug and fix the code

What it should do

evaluate_access_tier(user) returns "Privileged" if user.role is "admin", returning "Standard" otherwise. Example: evaluate_access_tier({ role: "guest" }) → "Standard".

What happens instead

evaluate_access_tier({ role: "guest" }) returns "Privileged" and overwrites user.role to "admin".

function evaluate_access_tier(user) {
  if (user.role = "admin") {
    return "Privileged";
  }
  return "Standard";
}

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

⏱️0:00

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🏆 0 hints = Flawless Solve

Think & Test Cooldown

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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

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javascriptLogic errorEasy

Single equals assignment in condition grants admin access to all

Time: 0:00

BugFind the bug and fix the code

What it should do

evaluate_access_tier(user) returns "Privileged" if user.role is "admin", returning "Standard" otherwise. Example: evaluate_access_tier({ role: "guest" }) → "Standard".

What happens instead

evaluate_access_tier({ role: "guest" }) returns "Privileged" and overwrites user.role to "admin".

function evaluate_access_tier(user) {
  if (user.role = "admin") {
    return "Privileged";
  }
  return "Standard";
}

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

Single equals assignment in condition grants admin access to all

What it should do

What happens instead

More logic errors to practise

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Single equals assignment in condition grants admin access to all

What it should do

What happens instead

More logic errors to practise

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