JavaScript
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 31 258 subscribers, ranking 4 178 in the Technologies & Applications category and 13 046 in the India region.
📊 Audience metrics and dynamics
Since its creation on невідомо, the project has demonstrated rapid growth, gathering an audience of 31 258 subscribers.
According to the latest data from 26 August, 2026, the channel demonstrates stable activity. Although there has been a change in the number of participants by -81 over the last 30 days and by 1 over the last 24 hours, overall reach remains high.
- Verification status: Not verified
- Engagement rate (ER): The average audience engagement rate is 6.06%. Within the first 24 hours after publication, content typically collects 2.44% reactions from the total number of subscribers.
- Post reach: On average, each post receives 1 894 views. Within the first day, a publication typically gains 763 views.
- Reactions and interaction: The audience actively supports content: the average number of reactions per post is 6.
- 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 27 August, 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.
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| Date | Subscriber Growth | Mentions | Channels | |
| 26 August | +11 | |||
| 25 August | +8 | |||
| 24 August | +9 | |||
| 23 August | +17 | |||
| 22 August | +4 | |||
| 21 August | 0 | |||
| 20 August | +29 | |||
| 19 August | +9 | |||
| 18 August | +4 | |||
| 17 August | +21 | |||
| 16 August | +18 | |||
| 15 August | +13 | |||
| 14 August | +10 | |||
| 13 August | +12 | |||
| 12 August | +11 | |||
| 11 August | +48 | |||
| 10 August | +8 | |||
| 09 August | +12 | |||
| 08 August | +8 | |||
| 07 August | +6 | |||
| 06 August | +8 | |||
| 05 August | +10 | |||
| 04 August | +34 | |||
| 03 August | +10 | |||
| 02 August | +8 | |||
| 01 August | +23 |
| 2 | CHALLENGE
function makeFns() {
const result = [];
for (var i = 0; i < 3; i++) {
let j = i;
result.push(() => i + j);
}
return result;
}
const fns = makeFns();
console.log(fns.map(f => f()).join(',')); | 609 |
| 3 | What is the output? | 944 |
| 4 | CHALLENGE
const arr = [1, [2, 3], { a: 4 }];
const copy = [...arr];
copy[1].push(99);
copy[2].a = 100;
arr[0] = 999;
console.log(arr[0], arr[1], arr[2].a, copy[0]); | 916 |
| 5 | What is the output? | 1 128 |
| 6 | CHALLENGE
const a = Math.max();
const b = Math.min();
const c = 0.1 + 0.2 === 0.3;
const d = Math.max(1, NaN, 3);
const e = [1, 2, 3].reduce((sum, n) => sum + n, 0) / 3;
const f = Number.isInteger(5.0);
console.log(a, b, c, d, e, f); | 1 054 |
| 7 | What is the output? | 1 237 |
| 8 | CHALLENGE
function makeCounters() {
const counters = [];
for (var i = 0; i < 3; i++) {
let j = i;
counters.push(() => `${i}-${j}`);
}
return counters;
}
const [a, b, c] = makeCounters();
console.log(a(), b(), c());
export {}; | 1 103 |
| 9 | What is the output? | 1 362 |
| 10 | CHALLENGE
class EventBus {
#listeners = new Map();
on(event, fn) {
if (!this.#listeners.has(event)) this.#listeners.set(event, new Set());
this.#listeners.get(event).add(fn);
return () => this.#listeners.get(event).delete(fn);
}
emit(event, payload) {
this.#listeners.get(event)?.forEach(fn => fn(payload));
}
}
const bus = new EventBus();
const log = [];
const unsub = bus.on('data', v => log.push(`A:${v}`));
bus.on('data', v => log.push(`B:${v}`));
bus.emit('data', 1);
unsub();
bus.on('data', v => log.push(`C:${v}`));
bus.emit('data', 2);
console.log(log.join(',')); | 1 290 |
| 11 | What is the output? | 1 423 |
| 12 | CHALLENGE
function Person(name) {
if (!(this instanceof Person)) {
return new Person(name);
}
this.name = name;
}
Person.prototype.greet = function () {
return `Hi ${this.name}`;
};
function Widget(id) {
this.id = id;
return { id: id * 2 };
}
Widget.prototype.getId = function () {
return this.id;
};
const p1 = Person('Zed');
const p2 = new Person('Nova');
const w = new Widget(5);
console.log(p1.greet(), p2.greet(), w.id, w.getId); | 1 317 |
| 13 | 😮 DeepSeek Harness: DeepSeek's New Node-Powered Agent Harness
Today, the popular Chinese model lab unveiled its own Claude Code-alike and already racked up 30k stars. It's not a typical CLI harness, though, but runs through a web UI. Curiously, everything is a plugin, built atop Cordis, an existing Node plugin system whose author DeepSeek has hired. GitHub repo.
DeepSeek | 1 411 |
| 14 | What is the output? | 1 533 |
| 15 | CHALLENGE
const log = [];
Promise.resolve(1)
.then(v => { log.push('a'+v); return v+1; })
.then(v => { throw new Error('e'+v); })
.catch(e => { log.push(e.message); return 10; })
.then(v => { log.push('b'+v); });
Promise.resolve()
.then(() => log.push('c'))
.then(() => log.push('d'));
setTimeout(() => console.log(log.join(',')), 0); | 1 531 |
| 16 | ❓ TermDOM: Build Terminal UIs with HTML, CSS and the DOM
Like the look of Ink but don't like React? TermDOM implements a DOM, cascade and layout engine that paints to the terminal, so you can write a TUI with HTML and CSS. Pure JS, no native or WASM dependencies, and the official TodoMVC runs with only a stylesheet swap. Early days, but I like the idea!
Brian Kim | 1 600 |
| 17 | What is the output? | 1 558 |
| 18 | CHALLENGE
function curry(fn) {
return function curried(...args) {
if (args.length >= fn.length) {
return fn.apply(this, args);
}
return (...more) => curried.apply(this, args.concat(more));
};
}
function add(a, b, c = 10) {
return a + b + c;
}
const curriedAdd = curry(add);
console.log(`${curriedAdd(1)(2)} ${curriedAdd(1,2,3)} ${curriedAdd(4)(5,6)}`); | 1 603 |
| 19 | The js1024 code golfing contest is over and we have three winners! Skydreams, a Super Monkey Ball-like experience, came in first place. You can read the readable and minified source if you want to see the techniques used. | 1 523 |
| 20 | What is the output? | 1 689 |
