JavaScript
Open in Telegram
A resourceful newsletter featuring the latest and most important news, articles, books and updates in the world of #javascript 🚀 Don't miss our Quizzes! Let's chat: @nairihar
Show more📈 Analytical overview of Telegram channel JavaScript
Channel JavaScript (@javascript) in the English language segment is an active participant. Currently, the community unites 31 006 subscribers, ranking 4 272 in the Technologies & Applications category and 12 947 in the India region.
📊 Audience metrics and dynamics
Since its creation on невідомо, the project has demonstrated rapid growth, gathering an audience of 31 006 subscribers.
According to the latest data from 14 October, 2026, the channel demonstrates stable activity. Although there has been a change in the number of participants by -178 over the last 30 days and by -4 over the last 24 hours, overall reach remains high.
- Verification status: Not verified
- Engagement rate (ER): The average audience engagement rate is 5.64%. Within the first 24 hours after publication, content typically collects 2.15% reactions from the total number of subscribers.
- Post reach: On average, each post receives 1 748 views. Within the first day, a publication typically gains 668 views.
- Reactions and interaction: The audience actively supports content: the average number of reactions per post is 4.
- Thematic interests: Content is focused on key topics such as javascript, console.log(gen.next().value, processdata, remix, acc.
📝 Description and content policy
The author describes the resource as a platform for expressing subjective opinions:
“A resourceful newsletter featuring the latest and most important news, articles, books and updates in the world of #javascript 🚀 Don't miss our Quizzes!
Let's chat: @nairihar”
Thanks to the high frequency of updates (latest data received on 15 October, 2026), the channel maintains relevance and a high level of publication reach. Analytics show that the audience actively interacts with content, making it an important point of influence in the Technologies & Applications category.
31 006
Subscribers
-424 hours
-97 days
-17830 days
Loading data
Similar Channels
Tags Cloud
Incoming and Outgoing Mentions
---
---
---
---
---
---
Attracting Subscribers
October '26Oct '26
October '26
+88
in 0 channels
September '26
+145
in 0 channels
Get PRO
August '26
+419
in 0 channels
Get PRO
July '26
+409
in 1 channels
Get PRO
June '26
+314
in 1 channels
Get PRO
May '26
+287
in 0 channels
Get PRO
April '26
+100
in 0 channels
Get PRO
March '26
+351
in 1 channels
Get PRO
February '26
+837
in 0 channels
Get PRO
January '26
+1 387
in 2 channels
Get PRO
December '25
+239
in 6 channels
Get PRO
November '25
+234
in 4 channels
Get PRO
October '25
+290
in 1 channels
Get PRO
September '25
+280
in 3 channels
Get PRO
August '25
+345
in 1 channels
Get PRO
July '25
+581
in 3 channels
Get PRO
June '25
+484
in 1 channels
Get PRO
May '25
+513
in 3 channels
Get PRO
April '25
+464
in 4 channels
Get PRO
March '25
+718
in 2 channels
Get PRO
February '25
+841
in 2 channels
Get PRO
January '25
+1 152
in 3 channels
Get PRO
December '24
+1 547
in 1 channels
Get PRO
November '24
+1 406
in 3 channels
Get PRO
October '24
+1 454
in 3 channels
Get PRO
September '24
+1 210
in 0 channels
Get PRO
August '24
+1 506
in 2 channels
Get PRO
July '24
+1 949
in 2 channels
Get PRO
June '24
+1 723
in 2 channels
Get PRO
May '24
+2 015
in 3 channels
Get PRO
April '24
+2 038
in 2 channels
Get PRO
March '24
+2 470
in 3 channels
Get PRO
February '24
+2 325
in 2 channels
Get PRO
January '24
+2 231
in 1 channels
Get PRO
December '23
+1 792
in 0 channels
Get PRO
November '23
+845
in 1 channels
Get PRO
October '23
+1 001
in 1 channels
Get PRO
September '23
+1 024
in 0 channels
Get PRO
August '23
+2 715
in 0 channels
| Date | Subscriber Growth | Mentions | Channels | |
| 15 October | 0 | |||
| 14 October | 0 | |||
| 13 October | +7 | |||
| 12 October | +2 | |||
| 11 October | +4 | |||
| 10 October | +4 | |||
| 09 October | +9 | |||
| 08 October | +12 | |||
| 07 October | 0 | |||
| 06 October | +1 | |||
| 05 October | +13 | |||
| 04 October | +9 | |||
| 03 October | +19 | |||
| 02 October | +4 | |||
| 01 October | +4 |
Channel Posts
| 2 | CHALLENGE
class EventBus {
#listeners = new Map();
on(event, cb) {
if (!this.#listeners.has(event)) this.#listeners.set(event, []);
this.#listeners.get(event).push(cb);
return this;
}
emit(event, ...args) {
const cbs = this.#listeners.get(event) || [];
return cbs.map(cb => cb(...args));
}
}
const bus = new EventBus();
bus.on('data', x => x * 2).on('data', x => x + 1);
const results = bus.emit('data', 5);
console.log(results, bus.emit('missing', 1)); | 277 |
| 3 |  💻 Deno is Joining Cloudflare (But…)
Maybe David Bushell saw the writing on the wall, as the Deno team isn't joining Cloudflare to keep working on Deno, but to fold celld into workerd so Durable Objects can be self-hosted (more on that here). The Deno runtime will get a final year of official fixes, Deno Deploy closes in six months, and JSR moves to Cloudflare's infrastructure.
Ryan Dahl | 674 |
| 4 | What is the output? | 800 |
| 5 | CHALLENGE
const obj = {
value: 42,
getValue: function() {
return this.value;
}
};
const unboundGetValue = obj.getValue;
const boundGetValue = unboundGetValue.bind(obj);
const boundTwice = boundGetValue.bind({ value: 100 });
console.log(
boundGetValue(),
boundTwice(),
unboundGetValue.call({ value: 7 }),
obj.getValue.apply({ value: 99 })
); | 754 |
| 6 | What is the output? | 955 |
| 7 | CHALLENGE
function* inner() {
const x = yield 1;
yield x + 1;
return 100;
}
function* outer() {
const result = yield* inner();
yield result;
}
const g = outer();
console.log(g.next().value, g.next(10).value, g.next().value, g.next().value); | 920 |
| 8 | What is the output? | 1 075 |
| 9 | CHALLENGE
const arr = [1, [2, 3], [4, [5, 6]]];
const a = arr.flat();
const b = arr.flat(Infinity);
const c = arr.flatMap(x => Array.isArray(x) ? x : [x, x]);
console.log(a, b, c); | 985 |
| 10 | What is the output? | 1 229 |
| 11 | CHALLENGE
const output = [];
output.push(typeof foo);
try {
output.push(typeof bar);
} catch (e) {
output.push(e.message);
}
var foo = () => 'foo';
let bar = () => 'bar';
console.log(output.join(' | ')); | 1 142 |
| 12 | What is the output? | 1 344 |
| 13 | CHALLENGE
async function main() {
const settled = await Promise.allSettled([
Promise.resolve(1),
Promise.reject('err'),
]);
const statuses = settled.map(s => s.status).join(',');
let anyResult;
try {
await Promise.any([Promise.reject('a'), Promise.reject('b')]);
} catch (err) {
anyResult = `${err.name}:${err.errors.join(',')}`;
}
console.log(statuses, anyResult);
}
main(); | 1 267 |
| 14 | What is the output? | 1 411 |
| 15 | CHALLENGE
const a = -7 % 3;
const b = 7 % -3;
const c = 2 ** 3 ** 2;
const d = (2 ** 3) ** 2;
const e = 0.1 + 0.2;
console.log(a, b, c, d, e); | 1 400 |
| 16 | What is the output? | 1 495 |
| 17 | CHALLENGE
function tag(strings, ...values) {
return strings.raw.join('|') + '::' + values.join(',');
}
const a = 5, b = 10;
console.log(tag`Sum:\n${a + b} End`); | 1 408 |
| 18 | What is the output? | 1 629 |
| 19 | CHALLENGE
const sym1 = Symbol('id');
const sym2 = Symbol('id');
const obj = {
[sym1]: 'first',
[sym2]: 'second',
regular: 'value'
};
const s = Symbol.for('shared');
const s2 = Symbol.for('shared');
console.log(
sym1 === sym2,
Object.keys(obj).length,
Reflect.ownKeys(obj).length,
s === s2,
sym1.toString()
); | 1 547 |
| 20 | What is the output? | 1 553 |
