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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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India13 573Tecnologías y Aplicaciones4 377

📈 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 31 441 suscriptores, ocupando la posición 4 377 en la categoría Tecnologías y Aplicaciones y el puesto 13 573 en la región India.

📊 Métricas de audiencia y dinámica

Desde su creación el невідомо, el proyecto ha mostrado un crecimiento acelerado, reuniendo a 31 441 suscriptores.

Según los últimos datos del 11 junio, 2026, el canal mantiene una actividad estable. En los últimos 30 días la variación de miembros fue de -198, y en las últimas 24 horas de 17, conservando un alto alcance.

  • Estado de verificación: No verificado
  • Tasa de interacción (ER): El promedio de interacción de la audiencia es 6.20%. 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 1 949 visualizaciones. En el primer día suele acumular 797 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 12 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.

31 441
Suscriptores
+1724 horas
-587 días
-19830 días
Archivo de publicaciones
JavaScript
JavaScript
31 426
CHALLENGE 

const p1 = new Promise((resolve) => {
  console.log("A");
  resolve("B");
});

const p2 = p1.then((val) => {
  console.log(val);
  return "C";
});

p2.then((val) => {
  console.log(val);
});

console.log("D");

JavaScript
JavaScript
31 426
What is the output?
Anonymous voting

JavaScript
JavaScript
31 426
CHALLENGE 

const str = "  Hello, World!  ";

const result = str
  .trim()
  .split(", ")
  .map((word, i) => {
    return i === 0
      ? word.toUpperCase()
      : word.replace(/!$/, "").split("").reverse().join("") + "?";
  })
  .join(" | ");

const [first, ...rest] = result.split(" | ");
const final = `${first} | ${rest.join(" & ")}`;

console.log(final);

JavaScript
JavaScript
31 426
What is the output?
Anonymous voting

JavaScript
JavaScript
31 426
CHALLENGE 

function checkTDZ() {
  console.log(typeof undeclaredVar);

  try {
    console.log(typeof letVar);
  } catch (e) {
    console.log(`Caught: ${e.constructor.name}`);
  }

  let letVar = "initialized";

  const result = (() => {
    let x = 10;
    return function () {
      let x = x + 5;
      return x;
    };
  })();

  try {
    console.log(result());
  } catch (e) {
    console.log(`Caught: ${e.constructor.name}`);
  }
}

checkTDZ();

JavaScript
JavaScript
31 426
What is the output?
Anonymous voting

JavaScript
JavaScript
31 426
CHALLENGE 
const curry = (fn) => {
  const arity = fn.length;
  return function curried(...args) {
    if (args.length >= arity) {
      return fn(...args);
    }
    return (...moreArgs) => curried(...args, ...moreArgs);
  };
};

const volume = (l, w, h) => l * w * h;
const curriedVolume = curry(volume);

const withLength5 = curriedVolume(5);
const withLength5Width3 = withLength5(3);

console.log(typeof withLength5);
console.log(typeof withLength5Width3);
console.log(withLength5Width3(2));
console.log(curriedVolume(4)(6)(2));

JavaScript
JavaScript
31 426
👀 FluidCAD (above) is a new project bringing parametric CAD to the JavaScript world where you can write code to create/manip
👀 FluidCAD (above) is a new project bringing parametric CAD to the JavaScript world where you can write code to create/manipulate objects and see a live update of what you're making. It's built on top of OpenCascade.js, a JS/WASM port of the open source OpenCascade 3D geometry library.

JavaScript
JavaScript
31 426
What is the output?
Anonymous voting

JavaScript
JavaScript
31 426
CHALLENGE 

const handler = {
  get(target, prop, receiver) {
    if (prop in target) {
      return Reflect.get(target, prop, receiver) * 2;
    }
    return `${prop} not found`;
  },
  set(target, prop, value) {
    if (typeof value !== "number") {
      throw new TypeError("Only numbers allowed");
    }
    target[prop] = value + 10;
    return true;
  },
  has(target, prop) {
    return prop.startsWith("x") ? false : prop in target;
  },
};

const obj = new Proxy({ score: 5, xp: 100 }, handler);

obj.level = 3;
console.log(obj.score);
console.log(obj.level);
console.log("xp" in obj);
console.log("score" in obj);
console.log(obj.rank);

JavaScript
JavaScript
31 426
🌲 Node Moves to Enable Temporal By Default The Temporal API, designed to modernize JavaScript’s date/time handling, reached
🌲 Node Moves to Enable Temporal By Default The Temporal API, designed to modernize JavaScript’s date/time handling, reached stage 4 last month. Node was waiting on V8 to make it enabled by default, which happened in V8 14.4, and the wheels are now in motion for an eventual release in Node 26. Richard Lau

JavaScript
JavaScript
31 426
What is the output?
Anonymous voting

JavaScript
JavaScript
31 426
CHALLENGE 

const delay = (val) => Promise.resolve(val);

async function pipeline(input) {
  const result = await delay(input)
    .then((v) => v * 2)
    .then((v) => v + 10)
    .then((v) => {
      if (v > 20) throw new Error(`Too large: ${v}`);
      return v;
    })
    .catch((e) => `Caught: ${e.message}`)
    .then((v) => (typeof v === "string" ? v.toUpperCase() : v * 3));

  return result;
}

Promise.all([pipeline(4), pipeline(8)]).then(([a, b]) => {
  console.log(a);
  console.log(b);
});

JavaScript
JavaScript
31 426
What is the output?
Anonymous voting

JavaScript
JavaScript
31 426
CHALLENGE 

"use strict";

function createCounter() {
  let count = 0;

  return {
    increment() { count++; },
    get value() { return count; },
    reset: function() { count = 0; }
  };
}

const counter = createCounter();
counter.increment();
counter.increment();
counter.increment();

const { value, reset } = counter;
reset();

console.log(counter.value, value);

JavaScript
JavaScript
31 426
What is the output?
Anonymous voting

JavaScript
JavaScript
31 426
CHALLENGE 

const config = {
  version: 1,
  settings: { theme: "dark", fontSize: 14 },
  tags: ["beta", "v1"],
};

Object.seal(config);
Object.freeze(config.settings);

config.version = 99;
config.newProp = "ignored";
delete config.tags;

config.settings.theme = "light";
config.settings.newKey = "ignored";

config.tags.push("v2");
config.tags[0] = "stable";

console.log(
  config.version,
  config.newProp,
  config.settings.theme,
  config.tags
);

JavaScript
JavaScript
31 426
What is the output?
Anonymous voting

JavaScript
JavaScript
31 426
CHALLENGE 

const memoize = (fn) => {
  const cache = new Map();
  return (...args) => {
    const key = JSON.stringify(args);
    if (cache.has(key)) {
      return cache.get(key);
    }
    const result = fn(...args);
    cache.set(key, result);
    return result;
  };
};

let callCount = 0;

const expensiveMultiply = memoize((a, b) => {
  callCount++;
  return a * b;
});

console.log(expensiveMultiply(3, 4));
console.log(expensiveMultiply(3, 4));
console.log(expensiveMultiply(2, 5));
console.log(expensiveMultiply(3, 4));
console.log(`calls: ${callCount}`);

JavaScript
JavaScript
31 426
✌️ V8 Exploitation: From Libc Pwn to Browser Bugs For the past few years I've been doing pwn challenges - starting from basic
✌️ V8 Exploitation: From Libc Pwn to Browser Bugs For the past few years I've been doing pwn challenges - starting from basic stack overflows, progressing through libc heap exploitation, writing a CheatEngine clone in Rust, and prototyping an eBPF-based record-replay tool that required bypassing vDSO. I felt fairly comfortable with systems programming and userspace exploitation. But challenges like QEMU escape or browser exploitation always seemed like a different league. Something I wasn't "ready for yet." That feeling created an artificial barrier - I kept telling myself I needed more preparation before even attempting them. .... @D4RK7ET