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🌲 Node.js weekly #​541

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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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✌️ 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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✌️ 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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🌲 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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The newer CSS viewport units (svh, lvh, dvh) are one of my favourite features in modern CSS 🔥

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

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

→ 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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CHALLENGE ❓

const array = [1, 2, 3];
const result = array.map(function(n) {
  return this ? n : 0;
}, false);

console.log(result);

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👀 Ky: Tiny, Elegant Fetch-Based HTTP Client for Browsers

Makes the Fetch API tidier to use as shown here. If you want to tighten up your fetch calls, it's worth a look.

Sindre Sorhus

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CHALLENGE ❓

function* generator() {
  yield* [1, 2];
  yield* (function* () { yield 3; yield 4; })();
}

const gen = generator();

console.log([...gen]);