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From these tickets, a single, continuous route can be constructed. There are no loops or repetitions in the route. You need to write a program that returns these same ticket objects in the order of the route. ```javascript function getRoute(tickets = []) { const cities = new Map(); for (const ticket of tickets) { cities.set(ticket.from, ticket); } const result = []; let currentCity = startcity; while (cities.has(currentCity)) { const next = cities.get(currentCity); result.push(next); currentCity = next.to; } return result; } console.clear() console.log(getRoute([ { from: 'London', to: 'Moscow' }, { from: 'NY', to: 'London' }, { from: 'Moscow', to: 'Spb' }, ])); ```

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Did you determine the system load in RPS? What was the amount? Have you experienced passing technical stages in a live-coding format?

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Have you ever dealt with application, code, or service security?

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Our chat application should display new messages received from the server as quickly as possible. The message format: interface Message { id: number text: string } The ID of the very first message = 1, and the ID of each subsequent message is 1 greater than the previous one. We need to display messages in the correct order, but the server does not guarantee the correct order of messages sent to our application. Timeline: // (receives) [phone] // (renders) . 1 2 3 . . 4 5 6 7 8 Display messages using the render function: render(message)

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Tell me about your experience with Node.js using an example of a project, what exactly did you develop on it

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/** * It is necessary to write an asynchronous function, * which will "sleep" for a specified number of milliseconds, * and then successfully complete */

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General understanding of JavaScript: parameter passing, asynchrony, prototypes, error handling.

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// It is necessary to check the solution to the problem on two services by calling: // 1. checkResult(url1, solution) // 2. checkResult(url2, solution) // // checkResult: (url: string, solution: string | number) => Promise<boolean>; // // - If both requests return true - log success // - If at least one returns false - log fail // - If at least one does not respond - log error // - If at least one responds longer than 1 sec - log timeout

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By roles — would you prefer to go into management or technical path?

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Tell us about your work experience at Atwint: projects, responsibilities, team, processes.

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Did you participate in API design?

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/** * An array of points with integer coordinates (x, y). * Determine if there exists a vertical line * that divides the points into two sets symmetric about this line. * Note: For convenience, a point can be represented not as an array [x, y], but as an object {x, y} */ isVertSym([[0, 0], [0, 0], [1, 1], [2, 2], [3, 1], [4, 0], [4, 0]]) // true isVertSym([[0, 0], [0, 0], [1, 1], [2, 2], [3, 1], [4, 0]]) // false isVertSym([]) // true isVertSym([[0, 0]]) // true isVertSym([[0, 0], [10, 0]]) // true isVertSym([[0, 0], [11, 1]]) // false isVertSym([[0, 0], [1, 0], [3, 0]]) // false function isVertSym(list) { // code here }

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/** * The `asyncAuth(callback)` function takes a callback, * which can be passed an error (as the first argument) and data * from the backend (as the second argument). * asyncAuth((error, data) => {}); * * You need to implement the `auth()` function, * which calls `asyncAuth()`, but returns a Promise. * * @returns {Promise} */ export function auth() { // asyncAuth((error, data) => {}); }

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Have you dealt with application deployment, CI/CD, and configuration?

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/ ** * Given an array. Sort the odd numbers in ascending order, * leave the even numbers in their places * / export function oddSort(numbers) { // your code here } console.log(oddSort([2, 3, 7, 4, 6, 1, 5, 8, 9])); // [2, 1, 3, 4, 6, 5, 7, 8, 9] console.log(oddSort([2, 4, 6, 8])); // [2, 4, 6, 8] console.log(oddSort([3, 7, 1, 5, 9])); // [1, 3, 5, 7, 9] // Need to test the solution with two services by calling: // 1. checkResult(url1, solution) // 2. checkResult(url2, solution) // // checkResult: (url: string, solution: string | number) => Promise<boolean>; // // - If both requests return true - log 'success' // - If at least one returns false - log 'fail' // - If at least one does not respond - log 'error' // - If at least one responds longer than 1 sec - log 'timeout' import { checkResult } from '...'; export async function checkResults() { const solution = 'Any answer'; const url1 = 'yandex.ru'; const url2 = 'google.com'; checkResult(url1, solution); checkResult(url2, solution); }

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Given three sections of code. You need to write the result of each console.log. var n = 1; function f(n) { n = 3; } f(n); console.log(n); // ?? // ------------------ var obj = { a: 1 }; function f1(o) { o.a = 5; } f1(obj); console.log(obj); // ?? // ------------------ var obj = { a: 1 }; function f2(o) { o = { hello: 1 }; } f2(obj); console.log(obj); // ??

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/** * The function `tryAuth()` uses `auth()` and, in case of an error, * makes N additional attempts. * If all attempts fail - throw the last error * * @returns {Promise} */ export function tryAuth(n) { }

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// Implement the groupBy method, extending standard array methods. // The method should return a grouped version of the array – an object, // where each key is the result of the function fn(arr[i]), // and each value is an array containing all original array elements with that key.

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How was your interaction structured in your last project? Was it Agile or something else?

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What is a decision or improvement you are proud of? Maybe a very complex or important task?

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