现已上线！2025 年 Telegram 研究 — 年度关键洞察 
JavaScript
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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
显示更多📈 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 31 450 名订阅者，在 技术与应用 类别中位列第 4 377，并在 印度 地区排名第 13 573 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 31 450 名订阅者。
根据 11 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 -198，过去 24 小时变化为 17，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 6.20%。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 1 949 次浏览，首日通常累积 797 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 12 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。
31 450
订阅者
+1724 小时
-587 天
-19830 天
数据加载中...
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| 日期 | 订阅者增长 | 提及 | 频道 | |
| 11 六月 | +21 | |||
| 10 六月 | +2 | |||
| 09 六月 | +23 | |||
| 08 六月 | +1 | |||
| 07 六月 | +2 | |||
| 06 六月 | 0 | |||
| 05 六月 | +4 | |||
| 04 六月 | +5 | |||
| 03 六月 | +8 | |||
| 02 六月 | +10 | |||
| 01 六月 | +16 |
频道帖子
😮 Geometric.js: A Library for Doing Geometry
Created by someone who works on graphics for the NYT, this elegant library lets you work with polygons, bounding boxes, reflection, interpolation, rotation, and the like (examples). Does one polygon intersect with another? There’s a function for that.
Harry Stevens (The New York Times)
| 2 | What is the output? | 833 |
| 3 | CHALLENGE
const handler = {
get(target, prop, receiver) {
if (prop in target) {
return Reflect.get(target, prop, receiver) * 2;
}
return `missing:${prop}`;
},
set(target, prop, value) {
if (typeof value !== "number") {
throw new TypeError("Only numbers allowed");
}
Reflect.set(target, prop, value + 10);
return true;
},
has(target, prop) {
return prop.startsWith("x") ? false : prop in target;
},
};
const store = new Proxy({ xray: 5, zoom: 8 }, handler);
store.nova = 3;
console.log(store.xray);
console.log(store.nova);
console.log(store.ghost);
console.log("zoom" in store);
console.log("xray" in store); | 800 |
| 4 |  👀 VoidZero is Joining Cloudflare
One of the year’s big moves in JS tooling, as told by Evan himself. The company he founded to build Vite, Vitest, Rolldown, Oxc, etc. is joining Cloudflare. He’s candid about why (monetization is hard). Good news: all projects stay MIT-licensed, and Evan and co remain in charge.
Evan You | 989 |
| 5 | What is the output? | 1 081 |
| 6 | CHALLENGE
class Registry {
static #instances = new Map();
static #count = 0;
static defaultTTL;
static maxSize;
static {
Registry.defaultTTL = 3600;
Registry.maxSize = 100;
Registry.#instances.set("__init__", { ts: 0 });
Registry.#count = Registry.#instances.size;
}
static register(key) {
if (Registry.#count >= Registry.maxSize) return false;
Registry.#instances.set(key, { ts: Registry.defaultTTL });
Registry.#count++;
return true;
}
static info() {
return `count=${Registry.#count}, ttl=${Registry.defaultTTL}, max=${Registry.maxSize}`;
}
}
Registry.register("service-a");
Registry.register("service-b");
console.log(Registry.info()); | 1 023 |
| 7 | What is the output? | 1 175 |
| 8 | 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(4, 5));
console.log(expensiveMultiply(4, 5));
console.log(expensiveMultiply(3, 7));
console.log(expensiveMultiply(4, 5));
console.log(`calls: ${callCount}`); | 1 142 |
| 9 |  🌪 GitHub Copilot SDK Now Generally Available
Available for several platforms, including Node, this SDK lets you wield the agentic engine behind Copilot in your own apps (coupled with your own custom-built tools) and it uses an existing Copilot subscription. The getting started tutorial provides a good intro and the cookbook includes some sample apps.
GitHub | 1 187 |
| 10 | What is the output? | 1 328 |
| 11 | CHALLENGE
class Pipeline {
#value;
#log = [];
constructor(value) {
this.#value = value;
}
map(fn) {
this.#value = fn(this.#value);
this.#log.push(`map:${this.#value}`);
return this;
}
filter(fn) {
if (Array.isArray(this.#value)) {
this.#value = this.#value.filter(fn);
this.#log.push(`filter:${this.#value}`);
}
return this;
}
reduce(fn, init) {
this.#value = this.#value.reduce(fn, init);
this.#log.push(`reduce:${this.#value}`);
return this;
}
result() {
console.log(this.#log.join(' | '));
return this.#value;
}
}
const output = new Pipeline([1, 2, 3, 4, 5, 6])
.filter(x => x % 2 === 0)
.map(arr => arr.map(x => x ** 2))
.reduce((acc, x) => acc + x, 0)
.result();
console.log(output); | 1 238 |
| 12 |  😮 replacements.fyi: Find Replacements for npm Packages
Type in a package name and get suggestions of lighter alternatives or Node APIs and code snippets that do the same task. For example: is-number leads to a one-liner, axios turns into fetch, and chalk recommends util.styleText. A neat idea it’d be cool to see grow further.
e18e | 1 266 |
| 13 | What is the output? | 1 418 |
| 14 | CHALLENGE
const transactions = [
{ type: "credit", amount: 200, category: "salary" },
{ type: "debit", amount: 50, category: "food" },
{ type: "debit", amount: 30, category: "food" },
{ type: "credit", amount: 100, category: "bonus" },
{ type: "debit", amount: 70, category: "transport" },
];
const summary = transactions.reduce((acc, { type, amount, category }) => {
acc.balance += type === "credit" ? amount : -amount;
acc.byCategory[category] = (acc.byCategory[category] ?? 0) + amount;
acc.count[type] = (acc.count[type] ?? 0) + 1;
return acc;
}, { balance: 0, byCategory: {}, count: {} });
console.log(summary.balance);
console.log(JSON.stringify(summary.byCategory));
console.log(JSON.stringify(summary.count)); | 1 247 |
| 15 | What is the output? | 1 559 |
| 16 | CHALLENGE
const person = {
name: "Marcus",
greet: function () {
const inner = () => `Hello, I am ${this.name}`;
return inner();
},
greetArrow: () => {
return `Hello, I am ${this.name}`;
},
};
const detached = person.greet;
console.log(person.greet());
console.log(person.greetArrow());
console.log(detached?.()); | 1 543 |
| 17 |  Programming language legend 😉 Anders Hejlsberg was on The Pragmatic Engineer talking about his background, work on TypeScript, JavaScript's strengths and weaknesses, and how he uses AI. | 1 546 |
| 18 | What is the output? | 1 747 |
| 19 | CHALLENGE
function Animal(name) {
this.name = name;
}
Animal.prototype.speak = function () {
return `${this.name} makes a sound.`;
};
function Dog(name, breed) {
Animal.call(this, name);
this.breed = breed;
}
Dog.prototype = Object.create(Animal.prototype);
Dog.prototype.constructor = Dog;
Dog.prototype.speak = function () {
return `${this.name} barks!`;
};
const dog = new Dog("Rex", "Labrador");
console.log(dog.speak());
console.log(dog instanceof Dog);
console.log(dog instanceof Animal);
console.log(Object.getPrototypeOf(dog) === Animal.prototype); | 1 667 |
| 20 |  📊 Plotly 3.6: The Declarative Graphing Library
A long-standing library, also widely used in the Python and R ecosystems, that offers over 50 visualization types, from basic charts and graphs to maps, plots, and heatmaps.
Plotly, Inc. | 1 558 |
