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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

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📈 Analytical overview of Telegram channel JavaScript

Channel JavaScript (@javascript) in the English language segment is an active participant. Currently, the community unites 31 145 subscribers, ranking 4 163 in the Technologies & Applications category and 12 809 in the India region.

📊 Audience metrics and dynamics

Since its creation on невідомо, the project has demonstrated rapid growth, gathering an audience of 31 145 subscribers.

According to the latest data from 20 September, 2026, the channel demonstrates stable activity. Although there has been a change in the number of participants by -114 over the last 30 days and by -3 over the last 24 hours, overall reach remains high.

  • Verification status: Not verified
  • Engagement rate (ER): The average audience engagement rate is 6.21%. Within the first 24 hours after publication, content typically collects 2.30% reactions from the total number of subscribers.
  • Post reach: On average, each post receives 1 933 views. Within the first day, a publication typically gains 715 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 21 September, 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.

31 145
Subscribers
-324 hours
-327 days
-11430 days
Posts Archive
What is the output?
Anonymous voting

CHALLENGE
const multiplier = 3;

function createCounter() {
  let count = 0;
  const multiplier = 5;
  
  return function() {
    count++;
    return count * multiplier;
  };
}

const counter = createCounter();
console.log(counter());
console.log(counter());
console.log(multiplier);

What is the output?
Anonymous voting

CHALLENGE
const json = '{"name":"Sarah","age":25,"active":true}';
const obj = JSON.parse(json);

obj.name = "Emma";
obj.age++;

const json2 = JSON.stringify(obj);
const obj2 = JSON.parse(json2);

obj.age = 100;

console.log(obj2.age);

What is the output?
Anonymous voting

CHALLENGE
function Vehicle(type) {
  this.type = type;
  this.wheels = 4;
}

Vehicle.prototype.describe = function() {
  return `${this.type} with ${this.wheels} wheels`;
};

const car = new Vehicle('Car');
const bike = Vehicle('Bike');

console.log(car.describe());
console.log(typeof bike);
console.log(globalThis.type);

What is the output?
Anonymous voting

CHALLENGE
const x = null;
const y = undefined;
const z = 0;

const result1 = x ?? 'default';
const result2 = y ?? 'default';
const result3 = z ?? 'default';

const combined = result1 ? result2 ? result3 : 'B' : 'C';

console.log(combined);

🤔 Open Sourcing the Remix Store The Remix Store is a swag store for the Remix project and its codebase provides a powerful e
🤔 Open Sourcing the Remix Store The Remix Store is a swag store for the Remix project and its codebase provides a powerful example of how Remix’s own core team builds apps with Remix and Hydrogen. Brooks Lybrand and the Remix Team

What is the output?
Anonymous voting

CHALLENGE
function Vehicle(type) {
  this.type = type;
}

Vehicle.prototype.wheels = 4;
Vehicle.prototype.getInfo = function() {
  return `${this.type}: ${this.wheels}`;
};

const car = new Vehicle('Car');
const bike = Object.create(car);
bike.type = 'Bike';
bike.wheels = 2;

console.log(car.getInfo() + ' | ' + bike.getInfo());

🤔 Open Sourcing the Remix Store The Remix Store is a swag store for the Remix project and its codebase provides a powerful e
🤔 Open Sourcing the Remix Store The Remix Store is a swag store for the Remix project and its codebase provides a powerful example of how Remix’s own core team builds apps with Remix and Hydrogen. Brooks Lybrand and the Remix Team

👀 Useful Patterns for Building HTML Tools In many situations, you don’t need a full-on framework to build useful tools; just
👀 Useful Patterns for Building HTML Tools In many situations, you don’t need a full-on framework to build useful tools; just HTML, JavaScript and CSS in a single file will do the job fine. Simon’s become a bit of an expert by rolling out many such tools using LLMs, and shares his process and practices here. More please! Simon Willison

What is the output?
Anonymous voting

CHALLENGE
const obj = { a: 1, b: 2, c: 3 };
Object.defineProperty(obj, 'd', { 
  value: 4, 
  enumerable: false 
});

const entries = Object.entries(obj);
const keys = Object.keys(obj);
const values = Object.values(obj);

console.log(entries.length + keys.length + values.length);

👀 Many Devs blame Vercel for Next.js-related React security vulnerabilities. Because making new frameworks like Next.js is r
👀 Many Devs blame Vercel for Next.js-related React security vulnerabilities. Because making new frameworks like Next.js is relatively easy nowadays, someone with enough social influence can literally destroy Vercel's business by popularising some other framework, which, by the way, would have nearly identical problems anyway, because this was mostly the React problem itself. Tigran Bayburtsyan

What is the output?
Anonymous voting

CHALLENGE
class Subject {
  constructor() {
    this.observers = [];
  }
  attach(observer) {
    this.observers.push(observer);
  }
  notify(data) {
    this.observers.forEach(obs => obs.update(data));
  }
}

const subject = new Subject();
subject.attach({ update: (d) => console.log(d * 2) });
subject.attach({ update: (d) => console.log(d + 5) });
subject.notify(10);

🔵 Denial of Service and Source Code Exposure in React Server Components Security researchers have found and disclosed two additional vulnerabilities in React Server Components while attempting to exploit the patches in last week’s critical vulnerability. If you already updated for the Critical Security Vulnerability last week, you will need to update again. If you updated to 19.0.2, 19.1.3, and 19.2.2, these are incomplete and you will need to update again. December 11, 2025 by The React Team

What is the output?
Anonymous voting