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

Post Message #3582

25 October 2026

J

JavaScript

📊 Quiz

What is the output?

1 10 no missing false
undefined 10 no missing true
1 10 no missing true
1 10 undefined true

votes: 78 · results after voting — in Telegram ↗

1.6K · 06:33

Nearby in the feed

JavaScript06:32Poll J

JavaScript06:33CHALLENGE const handler = { get(target, prop, receiver) { if (!(prop in target)) { return `no ${String(prop)}`; } return Reflect.get(target, prop, receiver); },

this message

JavaScript06:33CHALLENGE let counter = 0; const state = { get value() { counter++; return counter % 3 === 0 ? null : counter; } }; let result; result ??= state.value; result ?J

JavaScript06:33Poll

J

JavaScript

JavaScript@javascript · channel · Tech

30 984subscribers1 565average post reach

Venue feed Open in Telegram

An open public feed from the search index ChatCrawler — “Google for public Telegram”; refreshed as the venue is crawled. Times are UTC.

Public content only, official Telegram API. About · FAQ · Index limits · Remove a page · Catalog · Search · How we count