Channel
@js_test
On this record: Growth · Engagement · What this channel posts · Advertising · Posts · Citations · Cite this entry
9,881subscribers
-18 since we began measuring on 6 August 2026
Risers and fallers across the register · movement among entries of 3,162–10,000.
| Telegram ID | -1001360497414 |
|---|---|
| Type | Channel |
| Username | @js_test |
| Description | Проверка своих знаний по языку JavaScript. Ссылка: @Portal_v_IT Сотрудничество: @oleginc, @tatiana_inc Канал на бирже: telega.in/c/js_test РКН: clck.ru/3KHeYk |
| Created | Between 1 March 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 | 15 August 2026 |
| Measurements held | 5 |
| Confirmed unchanged | 1 time, most recently 15 August 2026 |
| On Telegram | t.me/js_test |
| Measured (UTC) | Subscribers | Change |
|---|---|---|
| 15 Aug 2026, 18:56 | 9,881 | -11 |
| 12 Aug 2026, 05:05 | 9,892 | -6 |
| 9 Aug 2026, 09:52 | 9,898 | -1 |
| 6 Aug 2026, 20:10 | 9,899 | no change |
| 6 Aug 2026, 11:05 | 9,899 | first reading |
32 posts held, back to 28 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 21 pagesof Telegram’s post history, 20 posts per page.
ERR is average views per post over the last 30 days divided by subscribers, the definition TGStat uses, so this figure is comparable with the one you will see elsewhere. It falls structurally as a channel grows: a high ERR on a small channel and a low one on a large channel describe reach mathematics, not quality. We publish the figure and the sample it came from and pass no verdict on it.
ER is defined industry-wide as (forwards + reactions + comments) ÷ views— note the denominator is views, not subscribers. Telegram’s public web preview carries views and reactions but not forward or comment counts, so the reaction rate above is the reactions term only and is therefore a floor: the true ER for this channel is higher by an amount we have not measured and will not estimate.
| Window | Rolling 30 days · latest post in window 17 August 2026 |
|---|---|
| Posts held | 32 (28 July 2026 – 17 August 2026) |
| Views total | 9,239 |
| Reactions total | — |
| Forwards / comments | not exposed by the public surface — not measured, not estimated |
| Readings taken | 18 Aug 2026, 03:06 UTC |
Views are a single reading per post, taken at the time above. A post published in the last day or two is still accumulating views, which pulls the 30-day average down slightly. That is a property of the standard definition rather than a fault in it, so we keep the definition rather than “correcting” the number into something nobody can reproduce.
Precision. Telegram publishes view counts on its public widget in short form — 8.12K, 3.7M — so any reading at or above 1,000 reaches us rounded to three significant figures, and only counts below 1,000 are exact. Averages and rates derived from them are shown to the same precision rather than to the unit: a figure like 3,701,250 would assert digits nobody measured.
Reaction counts are published per emoji and rounded the same way, so a total below 1,000 is exact and a larger one is a sum that may carry a rounded component from each emoji above 1,000. Because it is a sum, it does not look rounded — read a large reaction total as three significant figures per contributing emoji rather than as the figure it prints.
Lifetime counters from Telegram’s own channel header, read 18 August 2026 — not the date at the top of this page, which is when the subscriber count was last read. A count marked ≈ was rounded by Telegram before we ever saw it — t.me prints these counters in full below 1,000 and to three significant figures above, so ≈142,000 means somewhere between 141,500 and 142,499.
Measured directly from 2 videos with a duration reading, out of the posts we hold for this channel — not this channel’s whole posting history, only the sample this register has actually read. An exact reading to the second, taken from the post itself rather than from Telegram’s own rounded chrome, so it carries no ≈ mark.
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 |
|---|---|---|---|
| 2VfnxxQsJbC | 1 | 17 August 2026 | 17 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 32 most recent posts we hold, published 28 July 2026 to 17 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.
❗️Что будет на выходе: const obj = { data: ['x', 'y', 'z'], *[Symbol.iterator]() { for (let i = this.data.length - 1; i >= 0; i--) { yield this.data[i].toUpperCase(); } } }; const result = []; for (const item of obj) { result.push(item); if (result.length === 2) break; } console.log(result.join('-')); Ответ: Z-Y JavaScript test | #JavaScript & Max
ИИ может забрать на себя часы работы — если знать, как правильно его использовать Пока Вы вручную пишете тексты, собираете информацию и разбираете таблицы, ИИ уже способен выполнять значительную часть этой работы за считанные минуты. Пройдите бесплатный мини-курс и научитесь: — Использовать ИИ для повседневных рабочих задач; — Быстро создавать тексты, отчёты и аналитику; — Сокращать время на рутинные процессы; — Ав…
❗️Что будет на выходе: function processData() { const results = []; for (let i = 0; i < 3; i++) { const multiplier = i + 1; setTimeout(() => { results.push(i * multiplier); }, 0); } setTimeout(() => { console.log(results.join(',')); }, 10); } processData(); Ответ: 0,2,6 JavaScript test | #JavaScript & Max
❗️Что будет на выходе: class Logger { constructor(prefix) { this.prefix = prefix; } log(message) { console.log(`${this.prefix}: ${message}`); } } class Database { constructor(logger) { this.logger = logger; } save(data) { this.logger.log(`Saving ${data}`); return `${data}_saved`; } } const logger = new Logger('DB'); const db = new Database(logger); const result = db.save('user')…
❗️Что будет на выходе: let symbol1 = Symbol('description'); let symbol2 = Symbol('description'); const obj = { [symbol1]: 'value1', [symbol2]: 'value2' }; console.log(obj[symbol1]); console.log(symbol1 === symbol2); Ответ: 'value1' false JavaScript test | #JavaScript & Max
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❗️Что будет на выходе: function foo() { return typeof arguments; }; console.log(foo(1, 2, 3)); Ответ: object JavaScript test | #JavaScript & Max
❗️Что будет на выходе: class LightMachine { constructor() { this.states = { green: { next: 'yellow' }, yellow: { next: 'red' }, red: { next: 'green' } }; this.currentState = 'green'; } transition() { this.currentState = this.states[this.currentState].next; return this.currentState; } } const lightMachine = new LightMachine(); let result = ''; for (let i = 0; i < 5; i++…
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❗️Что будет на выходе: const pipe = (...fns) => (value) => fns.reduce((acc, fn) => fn(acc), value); const add = (x) => (y) => x + y; const multiply = (x) => (y) => x * y; const subtract = (x) => (y) => y - x; const transform = pipe( add(5), multiply(3), subtract(2) ); console.log(transform(4)); console.log(transform(0)); Ответ: 25 13 JavaScript test | #JavaScript & Max
❗️Что будет на выходе: console.log('1'); setTimeout(() => console.log('2'), 0); Promise.resolve().then(() => console.log('3')); queueMicrotask(() => console.log('4')); setTimeout(() => console.log('5'), 0); Promise.resolve().then(() => { console.log('6'); return Promise.resolve(); }).then(() => console.log('7')); console.log('8'); Ответ: 1 8 3 4 6 7 2 5 JavaScript test | #JavaScript & Max
❗️Что будет на выходе: async function foo() { console.log('Start'); await Promise.resolve().then(() => { console.log('Inside Promise'); }); console.log('End'); } foo(); console.log('Outside'); Ответ: Start, Outside, Inside, Promise, End JavaScript test | #JavaScript & Max
Showing the 12 most recent of 32 posts we hold for @js_test. 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.
Citation-graph rank — 1,492,169 of 1,548,671entries in the measured graph. A weighted position computed from the forward and mention edges below — republished posts weigh more than named mentions — and recomputed periodically, over the whole graph. Published only as this ordinal position, never as a score: a position is a fact, and a score printed beside one channel’s name would read as a verdict this register does not make. The two counts beneath stay separate for the same reason mentions are never summed with forwards anywhere else on this page — a named-by count costs nothing to manufacture. The top 100 by this measure, or how it is computed.
Republishes
Channels on the register whose posts this channel has forwarded.
Built only from forwarded posts we have actually read, on both sides. Coverage is early and deliberately incomplete: a missing link means we have not read the post that would prove it, never that the relationship does not exist. Counts are distinct forwarded posts observed, so they only ever go up as we read more.
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.
Names
Channels on the register whose handles appear in this channel's posts.
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.
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 15 August 2026 — this entry's latest reading, not the date you are reading this.
“JavaScript test” (@js_test), 9,881 subscribers as measured 15 August 2026. Telegram Register, tgregister.com/channel/js_test.
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.