JavaScript
A resourceful newsletter featuring the latest and most important news, articles, books and updates in the world of #javascript π Don't miss our Quizzes! Let's chat: @nairihar
Show moreπ Analytical overview of Telegram channel JavaScript
Channel JavaScript (@javascript) in the English language segment is an active participant. Currently, the community unites 31 148 subscribers, ranking 4 163 in the Technologies & Applications category and 12 815 in the India region.
π Audience metrics and dynamics
Since its creation on Π½Π΅Π²ΡΠ΄ΠΎΠΌΠΎ, the project has demonstrated rapid growth, gathering an audience of 31 148 subscribers.
According to the latest data from 19 September, 2026, the channel demonstrates stable activity. Although there has been a change in the number of participants by -123 over the last 30 days and by -2 over the last 24 hours, overall reach remains high.
- Verification status: Not verified
- Engagement rate (ER): The average audience engagement rate is 6.26%. Within the first 24 hours after publication, content typically collects 2.31% reactions from the total number of subscribers.
- Post reach: On average, each post receives 1 949 views. Within the first day, a publication typically gains 718 views.
- Reactions and interaction: The audience actively supports content: the average number of reactions per post is 5.
- Thematic interests: Content is focused on key topics such as javascript, console.log(gen.next().value, processdata, remix, acc.
π Description and content policy
The author describes the resource as a platform for expressing subjective opinions:
βA resourceful newsletter featuring the latest and most important news, articles, books and updates in the world of #javascript π Don't miss our Quizzes!
Let's chat: @nairiharβ
Thanks to the high frequency of updates (latest data received on 20 September, 2026), the channel maintains relevance and a high level of publication reach. Analytics show that the audience actively interacts with content, making it an important point of influence in the Technologies & Applications category.
class EventEmitter {
constructor() {
this.events = new Map();
}
on(event, callback) {
if (!this.events.has(event)) {
this.events.set(event, []);
}
this.events.get(event).push(callback);
return this;
}
emit(event, ...args) {
const callbacks = this.events.get(event);
if (callbacks) {
callbacks.forEach(cb => cb(...args));
}
return this;
}
}
const emitter = new EventEmitter();
emitter.on('test', x => console.log(x * 2))
.on('test', x => console.log(x + 10))
.emit('test', 5);class Calculator {
constructor(value) {
this.value = value;
}
add(num) {
this.value += num;
return this;
}
multiply(num) {
this.value *= num;
return this;
}
}
const calc = new Calculator(5);
const addMethod = calc.add;
const result = addMethod.call(calc, 3).multiply(2);
console.log(result.value);
function processData() {
const results = [];
for (let i = 0; i < 3; i++) {
const multiplier = i + 1;
setTimeout(() => {
results.push(i * multiplier);
}, 0);
}
setTimeout(() => {
console.log(results.join(','));
}, 10);
}
processData();
function* innerGenerator() {
yield 1;
yield 2;
return 'inner-done';
}
function* outerGenerator() {
yield 'start';
const result = yield* innerGenerator();
yield result;
yield 'end';
}
const gen = outerGenerator();
console.log(gen.next().value);
console.log(gen.next().value);
console.log(gen.next().value);
console.log(gen.next().value);
console.log(gen.next().value);
function Vehicle(type) {
this.type = type;
this.wheels = 4;
}
Vehicle.prototype.getInfo = function() {
return `${this.type} with ${this.wheels} wheels`;
};
const car = new Vehicle('sedan');
const bike = Vehicle('motorcycle');
console.log(car.getInfo());
console.log(typeof bike);
console.log(bike?.type || 'undefined');
function mysteryFunction() {
console.log(x);
console.log(y);
console.log(z);
var x = 'declared';
let y = 'block-scoped';
const z = 'constant';
console.log(x);
console.log(y);
console.log(z);
}
mysteryFunction();
--require-module
β’ Module compile cache now stable
β’ http.setGlobalProxyFromEnv() added
β’ Multiple APIs promoted to stable (heapsnapshot, build snapshot, `v8.queryObjects`)
β’ Root CAs updated to NSS 3.117
β’ Several semver-minor improvements across events, module, stream, process, util
Rafael Gonzagaconst obj = {
value: 42,
[Symbol.toPrimitive](hint) {
if (hint === 'number') return this.value * 2;
if (hint === 'string') return `Value: ${this.value}`;
return this.value + 10;
}
};
console.log(+obj);
console.log(`${obj}`);
console.log(obj + 5);
console.log(Number(obj));
