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 31 453 suscriptores, ocupando la posición 4 376 en la categoría Tecnologías y Aplicaciones y el puesto 13 524 en la región India.

📊 Métricas de audiencia y dinámica

Desde su creación el невідомо, el proyecto ha mostrado un crecimiento acelerado, reuniendo a 31 453 suscriptores.

Según los últimos datos del 15 junio, 2026, el canal mantiene una actividad estable. En los últimos 30 días la variación de miembros fue de -174, y en las últimas 24 horas de 16, conservando un alto alcance.

  • Estado de verificación: No verificado
  • Tasa de interacción (ER): El promedio de interacción de la audiencia es 6.21%. Durante las primeras 24 horas tras publicar, el contenido suele obtener 2.59% de reacciones respecto al total de suscriptores.
  • Alcance de las publicaciones: Cada publicación recibe en promedio 1 952 visualizaciones. En el primer día suele acumular 813 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 16 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.

31 453
Suscriptores
+1624 horas
-137 días
-17430 días
Archivo de publicaciones
CHALLENGE
const items = new WeakSet();
const obj1 = { id: 1 };
const obj2 = { id: 2 };

items.add(obj1);
items.add(obj2);

obj2.value = 'test';
console.log(items.has(obj2));

obj2 = null;
setTimeout(() => {
  console.log(items.has(obj2));
}, 0);

Thank You for 30k! 🫡 We’ve just hit a major milestone: 30,000 subscribers! ⚡️ Thank you for being part of our community. Your support and engagement mean the world to us, and we’re excited to keep bringing you the content you love. Stay tuned for more updates and great things ahead! P.S. Play the video with the sound on. @JavaScript Newsletter Team ✌️ Check out our emoji pack here 🤝 Collaboration

What is the output?
Anonymous voting

CHALLENGE
const arr = [1, 2, 3, 4, 5];
const result = arr
  .map(x => x * 2)
  .filter(x => x > 5)
  .reduce((acc, val) => {
    return acc + (val % 3 === 0 ? val : 0);
  }, 0);

console.log(result);

🟠 Svelvet 11: Build Node-Based UIs with Svelte A mature Svelte component library for creating interactive node-based UIs and
🟠 Svelvet 11: Build Node-Based UIs with Svelte A mature Svelte component library for creating interactive node-based UIs and diagrams. v11 adds the ability to toggle between ‘snap grid’ and freeform modes for manipulating elements. (There’s a live demo at the bottom of the homepage.) Open Source Labs

What is the output?
Anonymous voting

CHALLENGE
const user = {
  name: 'John',
  greet() {
    const getName = () => {
      console.log(this.name);
    };
    getName();
  },
  farewell: function() {
    function getName() {
      console.log(this.name);
    }
    getName();
  }
};

user.greet();
user.farewell();

🥶 Developer Implements 'Doom' in TypeScript's Type System A curious quirk of TypeScript’s type system is that it is Turing-c
🥶 Developer Implements 'Doom' in TypeScript's Type System A curious quirk of TypeScript’s type system is that it is Turing-complete which has led some developers to implement apps entirely in the type system. One such developer has spent eighteen months producing 177 terabytes of types to get 1993’s Doom running with them. Ridiculous and amazing in equal measure, he 😉 explains the project in this widely lauded 7-minute video. Sarah Gooding (Socket)

What is the output?
Anonymous voting

CHALLENGE
let x = 1;
function outer() {
  let x = 2;
  function inner() {
    console.log(x);
    let x = 3;
  }
  inner();
}
outer();

What is the output?
Anonymous voting

CHALLENGE
function trickyFunction(a) {
    a = a || 42;
    let result = (function(a) {
        return a * 2;
    })(a);
    return result;
}

console.log(trickyFunction(0));

🥶 upfetch: An Advanced fetch Client Builder A TypeScript library to enhance fetch with schema validation, automatic response
🥶 upfetch: An Advanced fetch Client Builder A TypeScript library to enhance fetch with schema validation, automatic response parsing, and type-safety, while maintaining the familiar ՝fetch՝ API. Laurent Blondy

What is the output?
Anonymous voting

CHALLENGE
let a = 5; // binary: 0101
let b = 3; // binary: 0011
let c = a & b; // binary: 0001
let d = a | b; // binary: 0111
let e = a ^ b; // binary: 0110

console.log(c, d, e);

🤔 Subverting Control with Weak References Node supports WeakMap and WeakRef for working with weak references and James is a
🤔 Subverting Control with Weak References Node supports WeakMap and WeakRef for working with weak references and James is a big fan of the extra abstractions they unlock. A weak reference differs from a normal reference in that it doesn’t prevent a referenced object from being garbage collected – this might sound like it has limited value, but is quite useful in certain scenarios. James Long

Thank You for 30k! 🫡 We’ve just hit a major milestone: 30,000 subscribers! ⚡️ Thank you for being part of our community. You
Thank You for 30k! 🫡 We’ve just hit a major milestone: 30,000 subscribers! ⚡️ Thank you for being part of our community. Your support and engagement mean the world to us, and we’re excited to keep bringing you the content you love. Stay tuned for more updates and great things ahead! @JavaScript Newsletter Team ✌️ Check out our emoji pack here 🤝 Collaboration

What is the output?
Anonymous voting

CHALLENGE
function trickyQuestion() {
    var a = 1;
    var b = 2;

    return (function() {
        delete a;
        delete b;
        return a + b;
    })();
}

console.log(trickyQuestion());