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For frontend engineers with an interview coming up

Stop guessing what to study.Fix the gaps before they cost you.

Take an 8-minute skill check. Hireable shows you what’s shaky, gives you a plan, and lets you practice it with visual lessons, real code, and mock interviews.

About 8 minutes · no credit card · get a plan you can use today

See how it works

Learn by making the next move

Don’t watch another BFS video. Route the message yourself.

A storm has knocked out the city network. You control the queue, choose which station sends next, and watch Breadth-First Search find the shortest route to the hospital.

  • See the queue change after every choice.
  • Make a mistake and compare what should happen.
  • Finish by connecting your moves back to code and Big O.
Play the 3-minute mission

Your study plan, not another study list

Open Hireable. Do the next useful thing.

Every task in your plan comes from something you missed, hesitated on, or couldn’t explain yet. You always know why it’s next.

hireable / today’s planPlan active
Tuesday · your next rep

Fix request races under pressure.

7/7check done
01
Visual lesson · 8 min

Watch the bug happen

See two responses race, then stop the stale one from reaching the screen.

search-results.tsx08  useEffect(() => {
09    fetchResults(query)
10      .then(setResults)
11  }, [query])
Interview feedback

You spotted the symptom.

Now explain the cause before you touch the code.

From weak spot to stronger answer

You don’t need to study everything. You need the right next rep.

JavaScriptUI codingSystem design3 gaps found

Find it

See what’s actually holding you back.

Eight focused minutes across JavaScript, UI coding, system design, DSA, and communication. Your misses become your study order.

01
eventcall stackweb APIqueuerender

Understand it

Watch the hard parts happen.

See requests race, renders cascade, and algorithms traverse step by step. If you can see it, you can explain it.

02
R

Code it

Try it before someone asks you live.

Work in a real editor with a browser, console, and tests—not another multiple-choice quiz.

03
“What changes when this request resolves out of order?”

Say it out loud

Get comfortable with the follow-up.

Oogway listens to your reasoning, asks why, and pushes on the trade-offs interviewers care about.

04
81Readiness scoreLean hire

Fix the next thing

Leave every session knowing what to do.

Your scorecard shows where your answer fell short, why it mattered, and what to practice next.

05

Mock interview, real pressure

Knowing the answer and explaining it out loud are different skills.

Write the code. Run the tests. Talk through your choices. Oogway asks the awkward follow-up now, while the stakes are zero.

Frontend mock · live18:42
search-results.tsx05  const [query, setQuery] = useState('')
06
07  useEffect(() => {
08    fetchResults(query)
09      .then(setResults)
10  }, [query])
HHireable interviewer · listening
“What happens if the first request resolves after the second?”

Look beyond the happy path. Explain the user-visible failure before proposing the fix.

You’re still the engineer.

Oogway asks the next useful question without solving the problem for you.

No toy editor.

Write code, run tests, inspect the browser, and draw the system in one place.

No vague “keep practicing.”

Your attempt becomes specific feedback and the next task in your plan.

Feedback that points somewhere

No mystery score. No “just practice more.”

See exactly where your answer fell short, why it mattered, and what to work on next.

Open the sample scorecard
Sample session · senior frontendLean hire
81
Readiness score

You framed the problem well. You missed one async edge case.

“You handled loading and errors cleanly—but never cancelled the stale request.”
Practice this nextRequest races · visual lesson + 12-minute drill