JavaScript

前往频道在 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

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印度13 551 技术与应用4 384...

📈 Telegram 频道 JavaScript 的分析概览

频道 JavaScript (@javascript) 英语语言赛道中的是活跃参与者。目前社区聚集了 31 443 名订阅者，在 技术与应用 类别中位列第 4 384，并在印度地区排名第 13 551 位。

📊 受众指标与增长动态

自 невідомо 创建以来，项目保持高速增长，吸引了 31 443 名订阅者。

根据 13 六月, 2026 的最新数据，频道保持稳定运转。过去 30 天订阅人数变化为 -193，过去 24 小时变化为 21，整体触达仍然可观。

认证状态： 未认证
互动率 (ER)： 平均受众互动率为 6.27%。内容发布后 24 小时内通常能获得 2.53% 的反应，占订阅者总量。
帖子覆盖： 每篇帖子平均可获得 1 972 次浏览，首日通常累积 796 次浏览。
互动与反馈： 受众积极参与，单帖平均反应数为 7。
主题关注点： 内容集中在 javascript, console.log(gen.next().value, processdata, remix, acc 等核心主题上。

📝 描述与内容策略

作者将该频道定位为表达主观观点的平台：
“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”

凭借高频更新（最新数据采集于 14 六月, 2026），频道始终保持新鲜度与高覆盖。分析显示受众积极互动，使其成为 技术与应用 类别中的关键影响点。

31 443

订阅者

+2124 小时

-537 天

-19330 天

1 972

帖子浏览量

~ 79624 小时

~ 1 05148 小时

6.27%

参与率

~ 2

每日帖子数

Ads index

beta

帖子存档

31 443

🤟 Node.js v25.0.0 (Current) Released The latest cutting edge version of Node has arrived with Web Storage enabled by default, JSON.stringify perf improvements, a new --allow-net option in the permission model, built-in Uint8Array base64/hex conversion, and WebAssembly and JIT optimizations. As shown in the diagram above, this means Node 24 will soon be promoted to being the 'active' LTS release and Node 22 will enter its 'maintenance' LTS phase. Rafael Gonzaga

31 443

What is the output?

Anonymous voting

31 443

CHALLENGE

const numbers = [1, 2, 3, 4, 5];

const pipeline = (...fns) => (value) => fns.reduce((acc, fn) => fn(acc), value);

const multiply = (x) => (y) => x * y;
const add = (x) => (y) => x + y;
const square = (x) => x * x;

const transform = pipeline(
  multiply(2),
  add(3),
  square
);

const result = numbers.map(transform);
console.log(result);

31 443

What is the output?

Anonymous voting

31 443

CHALLENGE

const data = '{"name": "Maria", "age": 25, "skills": ["JavaScript", "Python"]}';

try {
  const parsed = JSON.parse(data);
  const modified = {
    ...parsed,
    age: parsed.age + 5,
    skills: [...parsed.skills, "TypeScript"]
  };
  
  const serialized = JSON.stringify(modified, null, 0);
  const reparsed = JSON.parse(serialized);
  
  console.log(reparsed.skills.length);
  console.log(typeof reparsed.age);
} catch (error) {
  console.log('Parse error');
}

31 443

What is the output?

Anonymous voting

31 443

CHALLENGE

const wm = new WeakMap();
const obj1 = {};
const obj2 = {};
const obj3 = obj1;

wm.set(obj1, 'first');
wm.set(obj2, 'second');
wm.set(obj3, 'third');

console.log(wm.get(obj1));
console.log(wm.get(obj2));
console.log(wm.get(obj3));
console.log(wm.has(obj1));
console.log(wm.size);

31 443

What is the output?

Anonymous voting

31 443

CHALLENGE

const userInput = "<script>alert('xss')</script>";
const sanitized = userInput
  .replace(/</g, '&lt;')
  .replace(/>/g, '&gt;')
  .replace(/"/g, '&quot;')
  .replace(/'/g, '&#x27;');

const credentials = {
  username: 'admin',
  password: 'secret123'
};

const safeLog = (obj) => {
  const { password, ...safe } = obj;
  return JSON.stringify(safe);
};

console.log(sanitized);
console.log(safeLog(credentials));

31 443

What is the output?

Anonymous voting

31 443

CHALLENGE

const a = 9007199254740991n;
const b = BigInt(9007199254740991);
const c = 9007199254740992;
const d = BigInt(9007199254740992);

console.log(a === b);
console.log(Number(a) === c);
console.log(c === Number.MAX_SAFE_INTEGER + 1);
console.log(d > a);
console.log(typeof (a + 1n));
console.log(Number(d) === c);

31 443

👍 The Firefox team has put together a way for you to give input on which Interop proposals matter the most to you (above). Go to the Interop Feature Ranking site (GitHub account required) and drag the web platform features that matter most for you to the top.

31 443

What is the output?

Anonymous voting

31 443

CHALLENGE

class Observable {
  constructor(subscriber) {
    this.subscriber = subscriber;
  }
  
  subscribe(observer) {
    return this.subscriber(observer);
  }
  
  map(fn) {
    return new Observable(observer => {
      return this.subscribe({
        next: value => observer.next(fn(value)),
        error: err => observer.error(err),
        complete: () => observer.complete()
      });
    });
  }
}

const source = new Observable(observer => {
  observer.next(1);
  observer.next(2);
  observer.complete();
});

const doubled = source.map(x => x * 2);
doubled.subscribe({
  next: value => console.log(value),
  complete: () => console.log('done')
});

31 443

👀 Viz.js 3.20: Work with Graphviz in the Browser Graphviz is a suite of open source graph drawing tools of over 30 years’ vintage. Viz.js is a WebAssembly Graphviz build that brings its functionality into the browser. GitHub repo. Michael Daines

31 443

What is the output?

Anonymous voting

31 443

CHALLENGE

class Calculator {
  static multiply(a, b) {
    return a * b;
  }
  
  static add = (a, b) => {
    return a + b;
  }
}

class ScientificCalculator extends Calculator {
  static multiply(a, b) {
    return super.multiply(a, b) * 2;
  }
}

console.log(Calculator.multiply(3, 4));
console.log(ScientificCalculator.add(5, 6));
console.log(ScientificCalculator.multiply(2, 3));

31 443

📥 The Birth of Prettier The author takes us back ten years to the genesis of Prettier, the popular opinionated, deterministic code formatter he co-created with James Long. Prettier effectively introduced and popularized the practice of fully-automated AST-based code formatting in the JavaScript ecosystem. Christopher Chedeau (Vjeux)

31 443

What is the output?

Anonymous voting

31 443

CHALLENGE

const obj = {
  name: 'Sarah',
  greet() {
    return `Hello, ${this.name}`;
  },
  delayedGreet() {
    const fn = function() {
      return this.greet();
    };
    return fn.call(this);
  }
};

const result = obj.delayedGreet();
console.log(result);