CHALLENGE
const obj = { value: 10 };
const result = (obj.value += 5) && obj.value;
console.log(result);
👍2
👍18❤4🔥3
Names, bios, addresses, zip codes, dates, monetary amounts, transactions, and a lot more besides. I really like the guided DevTools console based demo you can try – an idea other projects should consider. GitHub repo.
Faker.js Team
Please open Telegram to view this post
VIEW IN TELEGRAM
👍7🔥4❤2
CHALLENGE
async function test() {
return (await Promise.resolve(0)) || 10;
}
test().then(console.log);
👍11
🤩9👍6❤3
A nicely diagrammed deep dive (and it really is deep) into a technique that allows malicious parties to turn a file write vulnerability in a Node app into a remote code execution exploit even when the file system is mounted read-only.
Stefan Schiller (Sonar)
Please open Telegram to view this post
VIEW IN TELEGRAM
🔥4❤2👍2🤔1
CHALLENGE
const arr = [1, 2, 3];
const copy = [...arr];
copy.push(4);
console.log(arr);
console.log(copy);
👍4
What is the output?
Anonymous Quiz
8%
[1, 2, 3, 4], Error
11%
[1, 2, 3], Error
21%
[1, 2, 3, 4], [1, 2, 3, 4]
60%
[1, 2, 3], [1, 2, 3, 4]
👍15❤10🔥9🤔1
Please open Telegram to view this post
VIEW IN TELEGRAM
👍8❤3🔥2🤩1
CHALLENGE ❓
console.log(typeof typeof 42);
Please open Telegram to view this post
VIEW IN TELEGRAM
👍5🔥3❤2
🤣26🤔15👍8❤1
The
??= nullish coalescing assignment operator snuck into JavaScript a few years ago via ECMAScript 2021 and has been broadly supported almost everywhere for ages. Trevor shows off how it can tighten up your assignments here.Trevor I. Lasn
Please open Telegram to view this post
VIEW IN TELEGRAM
❤8🔥4👍3
CHALLENGE ❓
let name = "Alice";
(function() {
let name = "Bob";
console.log(name);
})();
console.log(name);
Please open Telegram to view this post
VIEW IN TELEGRAM
👍2🔥1
What is the output?
Anonymous Quiz
57%
"Bob", "Alice"
9%
"Alice", "Alice"
10%
"Bob", "Bob
24%
"Alice", "Bob"
👍18❤4🔥4
Give this online tool the name of an npm package and you get a quick ‘dashboard’ style view of the project’s main statistics, covering areas like quality scores, commits, open issues, releases, bundle size, and more.
Shrinath Nayak
Please open Telegram to view this post
VIEW IN TELEGRAM
❤3👍2🔥2🤩1
CHALLENGE ❓
const sym1 = Symbol("id");
const sym2 = Symbol("id");
console.log(sym1 === sym2);
Please open Telegram to view this post
VIEW IN TELEGRAM
👍3
🤔32🤣31❤3👍3🔥3
Please open Telegram to view this post
VIEW IN TELEGRAM
👍6❤2🔥2
CHALLENGE ❓
const name = "Alice";
const obj = {
name: "Bob",
getName() {
return this.name;
}
};
console.log(obj.getName.call({ name: "Charlie" }));
Please open Telegram to view this post
VIEW IN TELEGRAM
👍11❤2
🔥17❤3👍2