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📈 Análisis del canal de Telegram JavaScript

El canal JavaScript (@javascript) en el segmento lingüístico de Inglés es un actor destacado. Actualmente la comunidad reúne a 31 138 suscriptores, ocupando la posición 4 164 en la categoría Tecnologías y Aplicaciones y el puesto 12 801 en la región India.

📊 Métricas de audiencia y dinámica

Desde su creación el невідомо, el proyecto ha mostrado un crecimiento acelerado, reuniendo a 31 138 suscriptores.

Según los últimos datos del 21 septiembre, 2026, el canal mantiene una actividad estable. En los últimos 30 días la variación de miembros fue de -118, y en las últimas 24 horas de -7, conservando un alto alcance.

  • Estado de verificación: No verificado
  • Tasa de interacción (ER): El promedio de interacción de la audiencia es 6.16%. Durante las primeras 24 horas tras publicar, el contenido suele obtener 2.24% de reacciones respecto al total de suscriptores.
  • Alcance de las publicaciones: Cada publicación recibe en promedio 1 917 visualizaciones. En el primer día suele acumular 697 visualizaciones.
  • Reacciones e interacción: La audiencia responde de forma activa: el promedio de reacciones por publicación es 4.
  • Intereses temáticos: El contenido se centra en temas clave como javascript, console.log(gen.next().value, processdata, remix, acc.

📝 Descripción y política de contenido

El autor describe el recurso como un espacio para expresar opiniones subjetivas:
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

Gracias a la alta frecuencia de actualizaciones (últimos datos recibidos el 22 septiembre, 2026), el canal mantiene la vigencia y un amplio alcance. La analítica demuestra que la audiencia interactúa activamente con el contenido, lo que lo convierte en un punto de referencia dentro de la categoría Tecnologías y Aplicaciones.

31 138
Suscriptores
-724 horas
-517 días
-11830 días
Archivo de publicaciones
What is the output?
Anonymous voting

CHALLENGE
const original = { a: 1, b: { c: 2 } };
const shallow = { ...original };
const deep = JSON.parse(JSON.stringify(original));

shallow.a = 10;
shallow.b.c = 20;

deep.a = 100;
deep.b.c = 200;

const frozen = Object.freeze({ x: 1, y: { z: 2 } });
frozen.x = 99;
frozen.y.z = 99;

console.log(original.a, original.b.c, frozen.x, frozen.y.z);

🤟 How We Migrated Our Rush.js Monorepo to Node Type Stripping Since v23.6 (and in LTS since v22.18.0), Node has supported ru
🤟 How We Migrated Our Rush.js Monorepo to Node Type Stripping Since v23.6 (and in LTS since v22.18.0), Node has supported running (most) TypeScript code by stripping the types out first. The Calm team was excited about the potential for improving productivity and DX, and set a migration in process. Here’s a look at the challenges encountered and what the end results were. Stuart Dotson (Calm)

What is the output?
Anonymous voting

CHALLENGE
class EventBus {
  constructor() {
    this.events = new Map();
  }
  
  on(event, callback) {
    if (!this.events.has(event)) {
      this.events.set(event, []);
    }
    this.events.get(event).push(callback);
  }
  
  emit(event, data) {
    if (this.events.has(event)) {
      this.events.get(event).forEach(callback => callback(data));
    }
  }
}

const bus = new EventBus();
bus.on('user', name => console.log(`Hello ${name}`));
bus.on('user', name => console.log(`Welcome ${name}`));
bus.emit('user', 'Sarah');
bus.emit('admin', 'John');

Is there a difference between the previous code (red) and the new one (green) ? Actually, there is 35second difference 😠 The
Is there a difference between the previous code (red) and the new one (green) ? Actually, there is 35second difference 😠 The previous code was, on every loop, creating a new object, always deallocating and reallocating memory, while the second example creates one object (a cache) and save each item into it. Eduard Krivánek

What is the output?
Anonymous voting

CHALLENGE
const promise1 = Promise.resolve('first');
const promise2 = new Promise(resolve => {
  resolve('second');
});

const promise3 = Promise.resolve().then(() => 'third');

async function test() {
  console.log('start');
  
  const result1 = await promise1;
  console.log(result1);
  
  const result2 = await promise2;
  console.log(result2);
  
  const result3 = await promise3;
  console.log(result3);
  
  console.log('end');
}

test();

What is the output?
Anonymous voting

CHALLENGE
function createCounter() {
  let count = 0;
  return {
    increment: () => ++count,
    decrement: () => --count,
    get: () => count
  };
}

const counter1 = createCounter();
const counter2 = createCounter();
counter1.increment();
counter1.increment();
counter2.increment();
console.log(counter1.get(), counter2.get());
const { increment, get } = counter1;
increment();
console.log(get());

If Linus Torvalds applied for a junior coding job today… He’d get rejected. He doesn’t have “5 years React experience.” That’
If Linus Torvalds applied for a junior coding job today… He’d get rejected. He doesn’t have “5 years React experience.” That’s how broken hiring has become. 😨

What is the output?
Anonymous voting

CHALLENGE
let obj1 = { name: 'Sarah' };
let obj2 = { name: 'Mike' };
let obj3 = { ref: obj1 };

obj1.circular = obj1;
obj2.partner = obj3;
obj3.partner = obj2;

let weakMap = new WeakMap();
weakMap.set(obj1, 'data1');
weakMap.set(obj2, 'data2');

obj1 = null;
obj2 = null;

console.log(weakMap.has(obj3.ref));
console.log(obj3.partner.name);

What is the output?
Anonymous voting

CHALLENGE
const user = {
  name: 'Sarah',
  age: 25,
  getName() { return this.name; },
  getAge: () => this.age
};

const methods = {
  regular: user.getName,
  arrow: user.getAge
};

console.log(methods.regular());
console.log(methods.arrow());
console.log(user.getName());
console.log(user.getAge());

🤟 Eliminating JavaScript Cold Starts on AWS Lambda Porffor is a rapidly developing ahead-of-time JavaScript compiler with a
🤟 Eliminating JavaScript Cold Starts on AWS Lambda Porffor is a rapidly developing ahead-of-time JavaScript compiler with a major benefit being extremely quick process launch times (think sub-millisecond). This is certainly more a taste of the future, and something to experiment with, rather than something you want to imminently deploy into production. Oliver Medhurst

What is the output?
Anonymous voting

CHALLENGE
function* fibonacci() {
  let [a, b] = [0, 1];
  while (true) {
    yield a;
    [a, b] = [b, a + b];
  }
}

function* takeWhile(generator, predicate) {
  for (const value of generator) {
    if (!predicate(value)) break;
    yield value;
  }
}

const fib = fibonacci();
const smallFibs = takeWhile(fib, x => x < 20);
console.log([...smallFibs].join(','));

What is the output?
Anonymous voting