❓ CHALLENGE

const a = [1, 2, 3];
const b = a.slice(0, 2).push(4);
console.log(b);

✌️ JavaScript Visualized: Promise Execution

A helpful diagrammed and animated article, coupled with an (optional) 8-minute video, that goes into how promises work and are scheduled behind the scenes. It’s useful to have a good mental model of these mechanics, given promises form the basis of asynchronous functions in JavaScript.

LYDIA HALLIE

❓ CHALLENGE

const a = [1, 2, 3];
const b = a.flatMap(x => [x, x * 2]);
console.log(b);

Wow check this out fully typed Vue components 🌲

Features

- Dark mode support
- Keyboard shortcuts
- Icons
...


ManukMinasyan

❓ CHALLENGE

const a = [1, 2, 3];
const b = a.findIndex(x => x === 4);
console.log(b);

🔵 10 Practical CSS Tricks every developer should know

Juan Carlos Arias Ambriz

❓ CHALLENGE

const a = { a: 1 };
const b = Object.seal(a);
b.a = 2;
console.log(a.a);

✌️🌕 Some Cross-Browser DevTools Features You Might Not Know

Explore the awesome and incredibly useful DevTools features that are supported in Chromium, Firefox, and Safari alike.

Pankaj Parashar

CHALLENGE ❓

let sum = 0;
for (let i = 0; i < 3; i++, sum++) { sum *= i }

console.log(sum);

✌️ A Proposal to Add Signals to JavaScript

A (very) early stage proposal for bringing a new feature to ECMAScript/JavaScript: signals! The proposal brings aboard ideas from a swathe of popular frameworks and aims to align everyone and get us on the same page when it comes to working with state and making updates based upon changes to state. Rob writes more about the proposal here.

ROB EISENBERG AND DANIEL EHRENBERG

CHALLENGE ❓

let x = 5;
let y = (x = 10) + 3;

console.log(x, y);

👀 Cally: Small, Feature-Rich Calendar Components

A collection of open-source calendar components for selecting single dates or date ranges. Framework-agnostic, themeable, localizable, and accessible (it even has an accessibility statement showing its commitment to this area).

NICK WILLIAMS

❓ CHALLENGE

console.log(3 > 2 > 1);