JavaScript
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
Show more📈 Analytical overview of Telegram channel JavaScript
Channel JavaScript (@javascript) in the English language segment is an active participant. Currently, the community unites 31 150 subscribers, ranking 4 164 in the Technologies & Applications category and 12 815 in the India region.
📊 Audience metrics and dynamics
Since its creation on невідомо, the project has demonstrated rapid growth, gathering an audience of 31 150 subscribers.
According to the latest data from 18 September, 2026, the channel demonstrates stable activity. Although there has been a change in the number of participants by -99 over the last 30 days and by -9 over the last 24 hours, overall reach remains high.
- Verification status: Not verified
- Engagement rate (ER): The average audience engagement rate is 6.21%. Within the first 24 hours after publication, content typically collects 2.30% reactions from the total number of subscribers.
- Post reach: On average, each post receives 1 935 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.
📝 Description and content policy
The author describes the resource as a platform for expressing subjective opinions:
“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”
Thanks to the high frequency of updates (latest data received on 19 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.
"use strict";
function createCounter() {
let count = 0;
return {
increment() { count++; },
get value() { return count; },
toString() { return `Counter: ${count}`; }
};
}
const counter = createCounter();
counter.increment();
counter.increment();
counter.increment();
try {
counter.value = 99;
} catch (e) {
console.log(`${e.constructor.name}: ${counter}`);
}
const config = {
timeout: 0,
retries: null,
host: "",
port: undefined,
debug: false,
};
const timeout = config.timeout ?? 3000;
const retries = config.retries ?? 5;
const host = config.host ?? "localhost";
const port = config.port ?? 8080;
const debug = config.debug ?? true;
console.log(timeout, retries, host, port, debug);const a = 9007199254740991n;
const b = BigInt(Number.MAX_SAFE_INTEGER);
console.log(a === b);
console.log(a + 1n);
console.log(typeof a);
console.log(a === 9007199254740991);const obj = {
name: "Nikola",
greetArrow: () => {
return `Hello, ${this?.name ?? "stranger"}!`;
},
greetRegular() {
return `Hello, ${this.name}!`;
},
greetNested() {
const inner = () => `Hi, ${this.name}!`;
return inner();
}
};
console.log(obj.greetArrow());
console.log(obj.greetRegular());
console.log(obj.greetNested());
const log = [];
const handler = {
set(target, key, value) {
log.push(`set:${key}=${value}`);
target[key] = value;
return true;
},
get(target, key) {
log.push(`get:${key}`);
return target[key];
}
};
const state = new Proxy({}, handler);
state.count = 0;
state.count = state.count + 1;
state.count = state.count + 1;
console.log(log.join(" | "));
const inventory = new Map([
["sword", { qty: 3, value: 150 }],
["shield", { qty: 1, value: 200 }],
["potion", { qty: 5, value: 30 }],
]);
const upgraded = new Map(
[...inventory.entries()]
.filter(([, item]) => item.value >= 100)
.map(([key, item]) => [key, { ...item, value: item.value * 2 }])
);
console.log(upgraded.size);
console.log(upgraded.get("sword").value);
console.log(upgraded.has("potion"));
console.log([...upgraded.keys()].join(", "));function makeCounter(start = 0, step = 1) {
let count = start;
const history = [];
return {
increment() {
count += step;
history.push(count);
return this;
},
decrement() {
count -= step;
history.push(count);
return this;
},
getHistory: () => history,
getCount: () => count,
};
}
const counter = makeCounter(10, 3);
counter.increment().increment().decrement();
console.log(counter.getCount());
console.log(counter.getHistory());
const team = {
name: "Alpha",
members: ["Carlos", "Diana", "Eve"],
listMembers() {
return this.members.map(function (member) {
return `${this.name}: ${member}`;
});
},
listMembersArrow() {
return this.members.map((member) => {
return `${this.name}: ${member}`;
});
},
};
console.log(team.listMembers()[0]);
console.log(team.listMembersArrow()[0]);
const flags = {
READ: 0b0001,
WRITE: 0b0010,
EXECUTE: 0b0100,
DELETE: 0b1000,
};
const userPermissions = flags.READ | flags.WRITE | flags.EXECUTE;
const adminPermissions = userPermissions | flags.DELETE;
const canDelete = (adminPermissions & flags.DELETE) !== 0;
const canExecute = (userPermissions & flags.EXECUTE) !== 0;
const readOnly = userPermissions ^ flags.WRITE;
console.log(canDelete, canExecute, readOnly, adminPermissions >> 1);