🤔 Почему стали популярны препроцессоры? Они позволяют: - использовать переменные, функции, миксины; - вкладывать стили логически; - импортировать файлы удобно; - избегать повторений и ускорять разработку. Sass, Less, Stylus — самые популярные. Ставь 👍 если знал ответ, 🔥 если нет Забирай 📚

Channel
FrontendQuiz - задачи с собеседований по фронтенду
@frontendquiz
On this record: Growth · Engagement · Advertising · Posts · Polls · Citations · Cite this entry
1,522subscribers
-24 since we began measuring on 6 August 2026
Risers and fallers across the register · movement among entries of 1,000–3,162.
Register entry
| Telegram ID | -1001393260463 |
|---|---|
| Type | Channel |
| Username | @frontendquiz |
| Created | Between 1 April 2018 and 31 July 2021 — estimated from Telegram’s id allocation, not measured. How this range is calculated. |
| First recorded | 6 August 2026 |
| Last confirmed live | 6 September 2026 |
| Measurements held | 11 |
| Confirmed unchanged | 1 time, most recently 6 September 2026 |
| On Telegram | t.me/frontendquiz |
Growth
| Measured (UTC) | Subscribers | Change |
|---|---|---|
| 6 Sept 2026, 16:16 | 1,522 | -4 |
| 2 Sept 2026, 12:15 | 1,526 | -4 |
| 30 Aug 2026, 02:13 | 1,530 | -2 |
| 27 Aug 2026, 02:48 | 1,532 | -4 |
| 24 Aug 2026, 10:04 | 1,536 | +1 |
| 20 Aug 2026, 21:46 | 1,535 | -5 |
| 15 Aug 2026, 04:47 | 1,540 | -2 |
| 12 Aug 2026, 07:23 | 1,542 | -2 |
| 9 Aug 2026, 12:38 | 1,544 | -2 |
| 6 Aug 2026, 19:00 | 1,546 | no change |
| 6 Aug 2026, 18:52 | 1,546 | first reading |
Engagement
22 posts held, back to 24 July 2026 — the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 2 pages of Telegram’s post history, 20 posts per page.
Nothing published in the last 30 days. ERR and ER are rolling 30-day measures, so there is nothing to compute — we hold 22 posts for this entry, the most recent from 7 August 2026. An engagement rate over an empty window would be a number about nothing.
Advertising
- Ad load
- 4.55%
- 1 of 22 posts carry an ad marker
- Regulatory tokens
- 1
- posts carrying an erid · 1 distinct token
- Median views · ads
- 64.0
- over 1 measured post
- Median views · rest
- 71.0
- over 21 measured posts
An ad marker, not a judgement about a post. A post is counted here because it carries one of two explicit markings: an erid token, which Russian law has required on paid placements since 2022 and which is issued against a specific advertising contract, or a #реклама / #ad hashtag in the body, which is the channel declaring it itself. The first is documentary; the second is a self-declaration and is weaker. No classifier reads the text and decides — nothing on this site guesses that a post is an advertisement.
This is a floor, and it can only ever be a floor. A channel that runs paid placements without marking them produces no marker for us to count, and an unmarked ad is indistinguishable from an ordinary post on the public surface. The ad load above therefore means “the share of posts that declared themselves”, never “the share of posts that were paid for”. A low figure is not evidence of a channel that runs few ads.
Both figures are medians, and no ratio between them is published. Each is a view reading that actually occurred on a post, picked by percentile_disc rather than averaged, so one viral post cannot move it and no interpolated value is invented between two readings. The sample on one side is under five posts, which is too thin to compare. The two figures are shown side by side with the count behind each, and deliberately not divided into a headline like “ads get x% fewer views” — an arithmetic that is easy to print and, at this sample size, means nothing.
| erid | Posts | First seen | Last seen |
|---|---|---|---|
| 2Vtzqxi6CjU | 1 | 4 August 2026 | 4 August 2026 |
A token repeated across several posts is one advertising contract placed more than once, which is what the identifier is for. The strings are reproduced exactly as they appeared in the post or in its click-through URL and are not validated against any registry — we record the marker a channel published, and whether it resolves to a real contract is a question for the register that issued it.
Measured over the 22 most recent posts we hold, published 24 July 2026 to 7 August 2026. Views are the latest single reading held for each post, and any reading at or above 1,000 is rounded by Telegram to three significant figures.
Recent posts
🤔 Какое свойство CSS используется для манипулирования визуальным порядком отображения дочерних элементов в контейнере, не изменяя их логическую последовательность в DOM?
- z-index50%
- order33%
- flex-flow17%
- display-order0%
Shares as published. No per-option vote count is published by Telegram, so none is shown.
🤔 Для чего необходимы статус-коды? Статус-коды HTTP позволяют клиенту понять результат обработки запроса: - 1xx — информационные; - 2xx — успешные (например, 200 OK); - 3xx — перенаправления; - 4xx — ошибки клиента (например, 404); - 5xx — ошибки сервера (например, 500). Ставь 👍 если знал ответ, 🔥 если нет Забирай 📚
🤔 Какое свойство CSS применяется для установки визуальной границы вокруг элементов, которая не влияет на их расположение в документе?
- border33%
- outline56%
- edge11%
- frame0%
Shares as published. No per-option vote count is published by Telegram, so none is shown.
🤔 Какой атрибут у <input> указывает на то, какой тип данных ожидается в поле?
- type91%
- inputmode9%
- format0%
- datatype5%
The shares total 105%, above 100: this poll accepts more than one answer per voter. No per-option vote count is published, so the number of voters who chose each option is not derivable and is not shown.
🤔 В чём преимущества Node.js? - Однопоточная асинхронная модель; - Подходит для I/O-ориентированных приложений; - Один язык на фронте и бэке; - Быстрая разработка. Ставь 👍 если знал ответ, 🔥 если нет Забирай 📚
🔴 Тестовое собеседование с ТимЛидом Frontend-разработки в этот четверг 6 августа(в четверг!) в 19:00 по мск приходи онлайн на открытое собеседование, чтобы посмотреть на настоящее интервью на Middle Frontend-разработчика. Как это будет: 📂 Алексей Романов, Teamlead в Underhood.dev с опытом 6+ лет, будет задавать реальные вопросы и задачи разработчику-добровольцу 📂 Алексей будет комментировать каждый ответ респондент…
🤔 Что такое массив? Массив — это структура данных, которая хранит упорядоченную коллекцию значений. Элементы доступны по индексам, начиная с 0. Массивы используются для хранения списков, коллекций и позволяют итерировать данные. Ставь 👍 если знал ответ, 🔥 если нет Забирай 📚
🤔 Как в JavaScript создать промис, который автоматически разрешается через 2 секунды?
- new Promise((resolve) => setTimeout(resolve, 2000));64%
- Promise.resolve(setTimeout(2000));21%
- new Promise((resolve) => resolve()).delay(2000);21%
- setTimeout(() => new Promise(resolve), 2000);21%
The shares total 127%, above 100: this poll accepts more than one answer per voter. No per-option vote count is published, so the number of voters who chose each option is not derivable and is not shown.
🤔 Какой CSS свойство позволяет контролировать порядок наложения элементов на странице без изменения их положения в документе?
- stack-level0%
- position0%
- order13%
- z-index87%
Shares as published. No per-option vote count is published by Telegram, so none is shown.
🤔 Какое значение свойства CSS aspect-ratio задает соотношение сторон для элемента?
- 16:90%
- 1:111%
- 4:36%
- Все вышеперечисленные значения83%
Shares as published. No per-option vote count is published by Telegram, so none is shown.
🤔 Что происходит при встрече с тегами link, img, script во время формирования DOM-дерева? - link — блокирует рендер до загрузки CSS. - img — создаёт отложенную загрузку изображения. - script: - Без async и defer — блокирует парсинг HTML до полной загрузки и выполнения. - С defer — выполняется после построения DOM. - С async — загружается и выполняется параллельно, но не в определённом порядке. Ставь 👍 если зн…
Showing the 12 most recent of 22 posts we hold for @frontendquiz. View and reaction counts are the latest single reading for each post, not a live figure, and a recent post is still accumulating both. A view count marked ≈ was rounded by Telegram before we ever saw it — t.me prints views in full below 1,000 and to three significant figures above, so ≈1,200,000 means somewhere between 1,150,000 and 1,249,999. Unmarked counts are exact. Text is reproduced from the public post preview and truncated for length.
Polls
The 6 most recent of 11 polls we hold for this entry, as Telegram rendered them when we read the post. A poll’s figures keep moving after that, so each one is dated.
🤔 Какое свойство CSS используется для манипулирования визуальным порядком отображения дочерних элементов в контейнере, не изменяя их логическую последовательность в DOM?
- z-index50%
- order33%
- flex-flow17%
- display-order0%
Shares as published. No per-option vote count is published by Telegram, so none is shown.
🤔 Какое свойство CSS применяется для установки визуальной границы вокруг элементов, которая не влияет на их расположение в документе?
- border33%
- outline56%
- edge11%
- frame0%
Shares as published. No per-option vote count is published by Telegram, so none is shown.
🤔 Какой атрибут у <input> указывает на то, какой тип данных ожидается в поле?
- type91%
- inputmode9%
- format0%
- datatype5%
The shares total 105%, above 100: this poll accepts more than one answer per voter. No per-option vote count is published, so the number of voters who chose each option is not derivable and is not shown.
🤔 Как в JavaScript создать промис, который автоматически разрешается через 2 секунды?
- new Promise((resolve) => setTimeout(resolve, 2000));64%
- Promise.resolve(setTimeout(2000));21%
- new Promise((resolve) => resolve()).delay(2000);21%
- setTimeout(() => new Promise(resolve), 2000);21%
The shares total 127%, above 100: this poll accepts more than one answer per voter. No per-option vote count is published, so the number of voters who chose each option is not derivable and is not shown.
🤔 Какой CSS свойство позволяет контролировать порядок наложения элементов на странице без изменения их положения в документе?
- stack-level0%
- position0%
- order13%
- z-index87%
Shares as published. No per-option vote count is published by Telegram, so none is shown.
🤔 Какое значение свойства CSS aspect-ratio задает соотношение сторон для элемента?
- 16:90%
- 1:111%
- 4:36%
- Все вышеперечисленные значения83%
Shares as published. No per-option vote count is published by Telegram, so none is shown.
Percentages only — there are no per-option vote counts here, because Telegram publishes none. The public post preview gives each option’s share and a single voter total, and nothing else. Multiplying one by the other would produce a per-option tally that looks measured and is not: the shares are rounded to whole numbers before we ever see them. We print what was published and leave the column that does not exist empty.
The shares need not add up to 100. Rounding alone puts many polls at 99 or 101. A poll that allows more than one answer per voter runs well past 100 by design, and several here do. The bars are drawn against a fixed 100% track at each option’s own percentage rather than normalised to the total, so a poll that exceeds it shows that it does instead of being quietly rescaled.
Read from the 22 most recent posts we hold, published 24 July 2026 to 7 August 2026. Telegram labels each poll by kind — an anonymous poll, a quiz, a closed set of final results — and that label is reproduced rather than paraphrased.
Mentions
Named by 1 registered channel — every channel on the register whose own posts have named this one, by its current username or any other username it currently holds, merged from two separately captured readings of the same fact so a namer caught by only one of them is not missed and a namer both caught is not counted twice. A username this channel has since dropped is not matched — that handle may belong to someone else now, and crediting today’s namer to yesterday’s owner would misattribute it.
Named by
Channels on the register whose posts name this channel's handle.
A mention is a weaker signal than a forward and is counted separately for that reason — naming a channel is not republishing it, and a handle in a post body is easy to place deliberately. The post counts beside each row below are distinct posts in which the handle appeared, from posts we have read on both sides — the “Named by N registered channels” figure above is a different count, of distinct NAMING CHANNELS rather than posts, and is not the sum of the rows under it.
Cite this entry
A live page changes as we take new readings, so a citation should name the measurement it is based on, not just the URL. The line below cites the subscriber count as measured 6 September 2026 — this entry's latest reading, not the date you are reading this.
“FrontendQuiz - задачи с собеседований по фронтенду” (@frontendquiz), 1,522 subscribers as measured 6 September 2026. Telegram Register, tgregister.com/channel/frontendquiz.
Full measurement history, CC BY 4.0. Every reading this register holds for this entry, not just the latest one, as a dated, downloadable record: CSV · JSON. Free to use with attribution to tgregister.com. Each file carries its own generation timestamp, which is the figure to cite for exactly when the data was retrieved.