JavaScript@javascript · channel · 30 984 subscribers✅ High trust

Post Message #3595

30 October 2026

J

JavaScript

📊 Quiz

What is the output?

4 2 true 1 0
2 1 true 0 1
3 2 false 0 1
3 2 true 0 1

votes: 63 · results after voting — in Telegram ↗

924 · 06:32

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JavaScript06:34Poll J

JavaScript06:32CHALLENGE const wm = new WeakMap(); class Counter { #id; static #nextId = 0; constructor() { this.#id = Counter.#nextId++; wm.set(this, { count: 0, id: this.#id

this message

JavaScript06:30CHALLENGE const createCounterModule = (() => { let instances = 0; return function() { instances++; let count = 0; return { increment() { count++; return count; J

JavaScript06:30Poll

J

JavaScript

JavaScript@javascript · channel · Tech

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