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Reading answers off a page feels like progress. It isn’t.

The parts that actually decide an interview — the follow-up question, the silence after a wrong turn, the code you have to defend out loud — only exist when someone else is in the room.

PrepTalk is built around that person, and keeps a record of what they saw.

PrepTalk Interview

One link, one room, one person asking the next question.

PrepTalk · Frontend Engineer · Round 2LIVE 32:07

Priya N.

Interviewer

You

Interviewee

Shared workspace

// debounce — candidate draft
function debounce(fn, ms) {
  let t;
  return (...args) => {
    clearTimeout(t);
  }
}

Chat

Priya

Walk me through why you reached for a Map here.

You

Lookup is O(1), so the scan stays linear instead of nested.

Priya

Good. What happens when the array has duplicates?

Scorecard

Hire

Communication4/5

Technical depth3/5

Problem solving4/5

Confidence3/5

Role fit4/5

A session room — video, chat, shared workspace, scorecard

Video and chat: WebRTC video with persistent chat and presence, in one pane.
Shared workspace: Notes and code both sides can edit while the call is running.
Question bank: Drafted from the role, level, and skills on the session — a starting point the interviewer edits.
Scorecard: Communication, technical depth, problem solving, confidence, role fit — plus strengths, improvements, and a recommendation.

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PrepTalk Lab · Assessment

Pair Sum

Medium · 40 points · 30:00

Given an array of integers and a target, return the indices of the two numbers that add up to the target. Each input has exactly one solution, and you may not use the same element twice.

solve([2, 7, 11, 15], 9) → [0, 1]

Sample 1passed

Sample 2passed

Hidden testson submit

EditorJavaScript24:31Submit

function solve(nums, target) {
  const seen = new Map();
  for (let i = 0; i < nums.length; i++) {
    const need = target - nums[i];
    if (seen.has(need)) {
      return [seen.get(need), i];
    }
    seen.set(nums[i], i);
  }
}

10 lines · Visible tests run locally. Final score is graded on the server.Run code

PrepTalk Lab

Graded by tests, not by impressions.

Build an assessment from a template or from scratch, assign it with a deadline, and let the grading happen where it can’t be fudged — on the server, against tests the candidate never sees.

A timer that runs with the attempt
Visible tests the candidate runs in-browser, as often as they like
Hidden tests graded server-side on submit
Plain-English explanations when a test fails

Open the lab

The real interview is a bad place to find out.

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FailRehearseBotchSurvive the interviewbefore it counts.

Reading answers off a page feels like progress. It isn’t.

One link, one room, one person asking the next question.

Graded by tests, not by impressions.

The real interview is a bad place to find out.

Fail the interview
before it counts.