es
Feedback
JavaScript

JavaScript

Ir al canal en 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

Mostrar más

📈 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 31 443 suscriptores, ocupando la posición 4 382 en la categoría Tecnologías y Aplicaciones y el puesto 13 579 en la región India.

📊 Métricas de audiencia y dinámica

Desde su creación el невідомо, el proyecto ha mostrado un crecimiento acelerado, reuniendo a 31 443 suscriptores.

Según los últimos datos del 12 junio, 2026, el canal mantiene una actividad estable. En los últimos 30 días la variación de miembros fue de -211, y en las últimas 24 horas de -26, conservando un alto alcance.

  • Estado de verificación: No verificado
  • Tasa de interacción (ER): El promedio de interacción de la audiencia es 6.22%. Durante las primeras 24 horas tras publicar, el contenido suele obtener 2.53% de reacciones respecto al total de suscriptores.
  • Alcance de las publicaciones: Cada publicación recibe en promedio 1 955 visualizaciones. En el primer día suele acumular 794 visualizaciones.
  • Reacciones e interacción: La audiencia responde de forma activa: el promedio de reacciones por publicación es 7.
  • 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 13 junio, 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.

31 443
Suscriptores
-2624 horas
-807 días
-21130 días
Archivo de publicaciones
What is the output?
Anonymous voting

CHALLENGE
const data = '{"users": [{"name": "Sarah", "age": 25}, {"name": "Mike", "age": null}]}';

try {
  const parsed = JSON.parse(data);
  const result = parsed.users.map(user => {
    return user.age ?? 'unknown';
  });
  console.log(result.join(' - '));
} catch (error) {
  console.log('Parse error occurred');
}

const invalidJson = '{"name": "John", age: 30}';
try {
  JSON.parse(invalidJson);
  console.log('Success');
} catch {
  console.log('Invalid');
}

🥶 TSDiagram: Diagrams as Code with TypeScript Draft diagrams quickly with TypeScript. Define your data models through top-le
🥶 TSDiagram: Diagrams as Code with TypeScript Draft diagrams quickly with TypeScript. Define your data models through top-level type aliases and interfaces and it automatically lays out the nodes in an efficient way. GitHub repo. Andrei Neculaesei

What is the output?
Anonymous voting

CHALLENGE
const arr = [1, 2, 3];
const obj = { valueOf: () => 4, toString: () => '5' };
const result1 = arr + obj;
const result2 = +obj;
const result3 = String(obj);
const result4 = obj == 4;
const result5 = obj === 4;
console.log(`${result1}|${result2}|${result3}|${result4}|${result5}`);
const weird = [] + [] + 'hello';
const weirder = [] + {} + [];
const weirdest = {} + [] + {};
console.log(`${weird}|${weirder}|${weirdest}`);
const final = !!'0' + !!'' + !!null + !!undefined;
console.log(final);

🗓 FullCalendar: A Full Sized JavaScript Calendar Control Get a Google Calendar-style experience in your own apps. Has connec
🗓 FullCalendar: A Full Sized JavaScript Calendar Control Get a Google Calendar-style experience in your own apps. Has connectors for React, Vue and Angular, but can be used with plain JavaScript too. The base version is MIT licensed, but there’s a commercial version too with extra features. Adam Shaw

What is the output?
Anonymous voting

CHALLENGE
class SimpleObservable {
  constructor(subscribeFn) {
    this.subscribeFn = subscribeFn;
  }
  
  subscribe(observer) {
    return this.subscribeFn(observer);
  }
}

const obs = new SimpleObservable(observer => {
  observer.next('first');
  observer.next('second');
  observer.complete();
});

const results = [];
obs.subscribe({
  next: val => results.push(val),
  complete: () => results.push('done')
});

console.log(results.join('-'));

👀 The Performance Inequality Gap in 2026 Esteemed browser and Web standards expert Alex Russell looks at the state of client
👀 The Performance Inequality Gap in 2026 Esteemed browser and Web standards expert Alex Russell looks at the state of client-side Web performance, what sort of bandwidth you should be taking into account, what devices people are using, and warns against ever-growing JavaScript bundle sizes. A lot of data here. Alex Russell

What is the output?
Anonymous voting

CHALLENGE
const original = {
  name: 'Sarah',
  hobbies: ['reading', 'coding'],
  address: { city: 'Portland', zip: 97201 }
};

const shallow = { ...original };
const deep = JSON.parse(JSON.stringify(original));

shallow.name = 'Emma';
shallow.hobbies.push('hiking');
shallow.address.city = 'Seattle';

deep.hobbies.push('swimming');
deep.address.zip = 98101;

console.log(original.hobbies.length, original.address.city);

✌️ Over 150 Algorithms and Data Structures Demonstrated in JS Examples of many common algorithms (e.g. bit manipulation, Pasc
✌️ Over 150 Algorithms and Data Structures Demonstrated in JS Examples of many common algorithms (e.g. bit manipulation, Pascal’s triangle, Hamming distance) and data structures (e.g. linked lists, tries, graphs) with explanations. Available in eighteen other written languages too. Oleksii Trekhleb et al.

What is the output?
Anonymous voting

CHALLENGE
const user = {
  profile: {
    settings: {
      theme: 'dark',
      notifications: null
    }
  }
};

const result1 = user?.profile?.settings?.theme;
const result2 = user?.profile?.settings?.notifications?.email;
const result3 = user?.profile?.preferences?.language ?? 'en';
const result4 = user?.profile?.settings?.notifications?.push?.('test');

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

😆
😆

📸 Google Announces Angular v21 The Google team has gone all out with this significant release of its popular JavaScript fram
📸 Google Announces Angular v21 The Google team has gone all out with this significant release of its popular JavaScript framework. They’ve put together a retro game-themed adventure-based tour of what’s new, along with top notch videos showing off features like its new signal-based approach to forms, MCP server for AI-powered workflows, library of headless components focused on accessibility, and even a new ‘Angular AI Tutor’ to get up to speed. Google

🔒 OWASP (Open Worldwide Application Security Project) has released its list of the top ten web application security threats
🔒 OWASP (Open Worldwide Application Security Project) has released its list of the top ten web application security threats in 2025.

😮 vis-timeline 8.4 – Interactive control to visualize data across time, as shown above. Numerous examples here.
😮 vis-timeline 8.4Interactive control to visualize data across time, as shown above. Numerous examples here.

👀 imgui-react-runtime: React + Dear ImGui + Static Hermes When the author teased a demo of this on X a few weeks ago, I wasn
👀 imgui-react-runtime: React + Dear ImGui + Static Hermes When the author teased a demo of this on X a few weeks ago, I wasn’t sure if it would get released, but here it is. A new way to put together native apps using React and the popular lightweight GUI library Dear ImGui. Tzvetan Mikov

What is the output?
Anonymous voting

JavaScript - Estadísticas y analítica del canal de Telegram @javascript