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A resourceful newsletter featuring the latest and most important news, articles, books and updates in the world of #javascript πŸš€ Don't miss our Quizzes!

Let's chat: @nairihar
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πŸ‘©β€πŸ¦― es-toolkit: A Modern JavaScript Utility Library

Think Lodash but newer, faster, smaller, and with tree shaking and built-in TypeScript support. The reference guide shows off the supported functions so far – it’s not quite as extensive as Lodash, but it’s getting there with the goal being β€œto achieve full feature parity with Lodash.”

Viva Republica, Inc
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CHALLENGE

const obj = {
a: 1,
then(resolve) {
resolve(this.a);
}
};

obj.then(console.log);
πŸ‘4❀1
What is the output?
Anonymous Quiz
52%
1
17%
undefined
20%
Promise object
11%
Error
πŸ‘11❀7πŸ”₯3🀣3πŸ€”1
🀩 Maska 3.0: Zero-Dependency Input Mask Library

Several demos on the homepage. Lightweight and framework independent but offers Vue 2/3, Alpine.js and Svelte integrations. GitHub repo.

Formβ€€io
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CHALLENGE

const array = [1, 2, 3];
const obj = { a: 1, b: 2 };

array.push(obj);
obj.a = 3;

console.log(array[3].a);
πŸ‘8πŸ€”1
What is the output?
Anonymous Quiz
21%
1
58%
3
14%
undefined
7%
Error
πŸ€”11πŸ”₯9πŸ‘6
πŸ“Ž Sponsorship opportunity!

We are excited to share that our JavaScript newsletter has become quite popular in our community!

With 21k subscribers and around 80 new joiners every day, we see a fantastic engagement with 20-30K reads daily.

If your company is interested in sponsoring and collaborating with our newsletter, we'd love to hear from you!

Feel free to contact me.
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CHALLENGE
❓


const obj = {
a: 1,
b() {
return new Promise(resolve => {
setTimeout(() => {
resolve(this.a);
}, 100);
});
}
};

obj.b().then(console.log);

obj.a = 2;
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What is the output?
Anonymous Quiz
26%
1
47%
2
19%
undefined
8%
Error
πŸ‘19
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✌️ I am not... I repeat, I am not... a "frontend developer", just because I like to write JS.

I'm also not a "backend developer" b/c I like to write communication-oriented code, to manage and transmit data and juggle asynchony and other non-UI stuff.
I'm a middle-end dev. Forever. I build libraries, tools, etc. My product is what another dev uses to build their product.

Kyle Simpson
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CHALLENGE ❓


const array = [1, 2, 3, 4];
const result = array.reduceRight((acc, val) => acc - val);

console.log(result);
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What is the output?
Anonymous Quiz
21%
2
28%
-8
32%
-2
19%
Error
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✌️ JavaScript weekly #698
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CHALLENGE ❓


function test() {
console.log(arguments.length);
}

test(1, 2, 3);
test.call(null, 1, 2, 3);
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What is the output?
Anonymous Quiz
43%
3, 3
22%
3, 0
24%
0, 3
12%
0, 0
πŸ‘14❀6
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🌲 Graceful Shutdown in NodeJS

In this article, I will show you how to do a graceful shutdown in a NodeJS application, but first, let's describe what "graceful shutdown" means and why we need to do that in our application and what are the benefits.

nairihar
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CHALLENGE ❓


const obj = { a: 1, b: 2 };
const descriptor = Object.getOwnPropertyDescriptor(obj, 'a');

descriptor.value = 3;
Object.defineProperty(obj, 'a', descriptor);

console.log(obj.a);
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What is the output?
Anonymous Quiz
25%
1
14%
2
52%
3
9%
Error
πŸ‘3
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The newer CSS viewport units (svh, lvh, dvh) are one of my favourite features in modern CSS
πŸ”₯

β†’ The "smallest viewport height" (svh) will always fit the smallest amount of space (all content will always be visible)

β†’ The "largest viewport height" (lvh) will always take up the largest amount of space (potentially hiding some content underneath UI)

β†’ The "dynamic viewport height" (dvh) will resize to fit the currently available space (adapting as the browser UI gets visible or hidden)

Mads Brodt
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