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Vetted in

React

87/100

High Confidence

Feb 18, 2026 · 20 questions · 23:43

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Be honest with yourself.

When you write React code, how much is actually you — and how much is Copilot auto-completing your thoughts? When you debug a production issue, do you understand the fix, or did you paste the error into ChatGPT and ship whatever it said?

There's no shame in using AI tools. But there's a difference between using them as a power-up and using them as a crutch. The question is: if someone unplugged all the AI tomorrow, would you still be good at your job?

That's what Vetted answers. It's not a test someone gives you — it's a test you give yourself. Pick a skill, answer honestly, and find out where you actually stand.

The confidence layer isn't there to police you. It's there so that when you score 85 in TypeScript, you can trust that number actually means something.

How it works

Three steps. No friction.

Pick a skill

React, Python, AWS, System Design — choose your topic and difficulty. Each test is generated fresh by AI, so no two are the same.

Test yourself

MCQs, code output prediction, bug fixing, and follow-up drills that adapt to your level. Timed, focused, and designed to reveal what you genuinely understand.

Know where you stand

Get an honest score you can trust — with a confidence rating that confirms it was really you. Share it or improve on it.

Who takes a Vetted assessment?

Real reasons people use this.

🪞

The honest self-checker

“I use Copilot daily. I genuinely want to know — how much React do I actually know without it?”

📈

The skill builder

“I scored 62 in System Design last month. Been studying. Let's see if it moved.”

🎯

The interview prepper

“I have a Meta interview in 2 weeks. I want to know where my blind spots are before they find them.”

💼

The credential seeker

“LinkedIn skills endorsements are a joke. I want something that actually means I was tested.”

Why trust your score?

A score is only useful if it's honest. Our confidence layer quietly ensures your result reflects what you actually know — so you can trust it, share it, and build on it. Read the full methodology.

Focus tracking

Ensures you stayed in the assessment — no second-tab temptation.

Paste detection

Distinguishes typed answers from copy-pasted ones.

Typing analysis

Recognizes natural human typing patterns vs. bulk-pasted text.

Follow-up drill-downs

Quick follow-ups based on your specific answer probe real understanding.

Timed rounds

Rapid-fire questions that test instinct, not research speed.

Sample confidence report

Typing rhythm

94%

Focus score

88%

Paste events

100%

Time patterns

91%

Answer depth

86%

High Confidence

94%

Deeper than a quiz

Questions adapt to your level. Get one right? The next one's harder. Struggle? It digs into where exactly your understanding breaks down.

⚛️

React Assessment

Question 4 of 20 · Intermediate

0:42

Monitoring

FIX CODE15 pts

This component has a bug that causes an infinite re-render loop. Find and describe the fix.

function UserProfile({ userId }) {
  const [user, setUser] = useState(null);

  useEffect(() => {
    fetch(`/api/users/${userId}`)
      .then(res => res.json())
      .then(data => setUser(data));
  }); // ← spot the bug

  return <div>{user?.name}</div>;
}

After you answer, a follow-up digs into your reasoning. This is how you discover whether you understand something — or just memorized it.