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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 31 132 subscribers, ranking 4 183 in the Technologies & Applications category and 12 833 in the India region.

📊 Audience metrics and dynamics

Since its creation on невідомо, the project has demonstrated rapid growth, gathering an audience of 31 132 subscribers.

According to the latest data from 22 September, 2026, the channel demonstrates stable activity. Although there has been a change in the number of participants by -121 over the last 30 days and by -5 over the last 24 hours, overall reach remains high.

  • Verification status: Not verified
  • Engagement rate (ER): The average audience engagement rate is 6.10%. Within the first 24 hours after publication, content typically collects 2.20% reactions from the total number of subscribers.
  • Post reach: On average, each post receives 1 900 views. Within the first day, a publication typically gains 684 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 23 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.

31 132
Subscribers
-524 hours
-367 days
-12130 days
Posts Archive
What is the output?
Anonymous voting

CHALLENGE
function executePromises() {
  console.log(1);
  
  setTimeout(() => {
    console.log(2);
  }, 0);
  
  Promise.resolve().then(() => {
    console.log(3);
    setTimeout(() => {
      console.log(4);
    }, 0);
  }).then(() => {
    console.log(5);
  });
  
  console.log(6);
}

executePromises();

😆
😆

What is the output?
Anonymous voting

CHALLENGE
const user = {
  name: 'Alice',
  age: 30
};

const handler = {
  get(target, prop) {
    if (prop in target) {
      return target[prop];
    }
    return `Property '${prop}' doesn't exist`;
  },
  set(target, prop, value) {
    if (prop === 'age' && typeof value !== 'number') {
      console.log('Age must be a number');
      return false;
    }
    target[prop] = value;
    return true;
  }
};

const proxy = new Proxy(user, handler);
proxy.age = '32';
proxy.age = 32;
console.log(proxy.job);

😆

🤟 Lexe: Package a Node App into a Single Executable Node actually has a mechanism for creating single executable application
🤟 Lexe: Package a Node App into a Single Executable Node actually has a mechanism for creating single executable applications and there are numerous other tools to do it, but Lexe takes the approach of using Amazon’s lightweight LLRT engine to make binaries of under 10MB in size. Note, however, "Lexe is not a drop-in replacement for Node.js. It only supports a subset of Node.js APIs." Ray-D-Song

What is the output?
Anonymous voting

CHALLENGE
const privateData = new WeakMap();

function Person(name) {
  privateData.set(this, { name, secretCount: 0 });
  
  this.greet = function() {
    const data = privateData.get(this);
    data.secretCount++;
    return `Hello, my name is ${data.name}`;
  };
  
  this.getSecretCount = function() {
    return privateData.get(this).secretCount;
  };
}

const alice = new Person('Alice');
alice.greet();
alice.greet();

const result = [
  privateData.has(alice),
  alice.name,
  alice.getSecretCount()
];

console.log(result);

🙂 Fastify + React – 7x Faster than Next.js? Node’s Fastify framework has a mature plugin for Vite integration (explained in
🙂 Fastify + React – 7x Faster than Next.js? Node’s Fastify framework has a mature plugin for Vite integration (explained in detail here), including @fastify/react which just hit version 1.0 and makes it easy to create fast, featureful (though obviously less so than Next.js) React apps atop Fastify. How fast? Very, it seems. Jonas Galvez

What is the output?
Anonymous voting

CHALLENGE
function* generateSequence() {
  let i = 1;
  while (i <= 3) {
    yield i++;
  }
}

function* extendSequence() {
  yield* generateSequence();
  yield* [4, 5];
  yield 6;
}

const generator = extendSequence();
const result = [];

for (const value of generator) {
  if (value % 2 === 0) {
    result.push(value * 2);
  } else {
    result.push(value);
  }
}

console.log(result);

😆
😆

What is the output?
Anonymous voting

CHALLENGE
function createSymbolDemo() {
  const obj = {};
  
  const sym1 = Symbol('description');
  const sym2 = Symbol('description');
  const sym3 = Symbol.for('shared');
  const sym4 = Symbol.for('shared');
  
  obj[sym1] = 'Value 1';
  obj[sym2] = 'Value 2';
  obj[sym3] = 'Value 3';
  obj[sym4] = 'Value 4';
  
  console.log(Object.keys(obj).length, sym1 === sym2, sym3 === sym4, obj[sym3]);
}

createSymbolDemo();

🕵️ 𝗪𝗲 𝗰𝗮𝘂𝗴𝗵𝘁 🇰🇵𝗟𝗮𝘇𝗮𝗿𝘂𝘀 𝗛𝗮𝗰𝗸𝗶𝗻𝗴 𝗚𝗿𝗼𝘂𝗽 𝗱𝗲𝗯𝘂𝗴𝗴𝗶𝗻𝗴 𝘁𝗵𝗲𝗶𝗿 𝗼𝘄𝗻 𝗺𝗮𝗹𝘄𝗮𝗿𝗲... 𝗶�
🕵️ 𝗪𝗲 𝗰𝗮𝘂𝗴𝗵𝘁 🇰🇵𝗟𝗮𝘇𝗮𝗿𝘂𝘀 𝗛𝗮𝗰𝗸𝗶𝗻𝗴 𝗚𝗿𝗼𝘂𝗽 𝗱𝗲𝗯𝘂𝗴𝗴𝗶𝗻𝗴 𝘁𝗵𝗲𝗶𝗿 𝗼𝘄𝗻 𝗺𝗮𝗹𝘄𝗮𝗿𝗲... 𝗶𝗻 𝗿𝗲𝗮𝗹 𝘁𝗶𝗺𝗲. A couple of weeks ago, something unexpected happened. While monitoring malicious uploads to the NPM ecosystem, we stumbled on a suspicious package: react-html2pdf.js (now suspended). At first glance, it looked innocuous. 𝗡𝗼 𝗹𝗶𝗳𝗲𝗰𝘆𝗰𝗹𝗲 𝗵𝗼𝗼𝗸𝘀. 𝗡𝗼 𝗼𝗯𝘃𝗶𝗼𝘂𝘀 𝗺𝗮𝗹𝘄𝗮𝗿𝗲. Just a basic function in the index.js file. Mackenzie Jackson

What is the output?
Anonymous voting

CHALLENGE
const num1 = 9007199254740992n;
const num2 = 1n;

const result1 = num1 + num2;
const result2 = Number(num1) + Number(num2);
const result3 = num1 + BigInt(1);
const result4 = String(num1) + String(num2);

console.log(typeof result2 === typeof result1, result1 === result3, result4);

😆 Vibe coding Tax has become a real thing! Cursor's new "pay as you go" strategy with better models drives 20-30% more code
😆 Vibe coding Tax has become a real thing! Cursor's new "pay as you go" strategy with better models drives 20-30% more code generation than you would typically do. For all of the "vibe coders" out there, this is becoming an exponential "coding tax" for products because more code equals more token consumption, which generates more code... Tigran Bayburtsyan

What is the output?
Anonymous voting