Another Milestone Celebration 🎉

We just hit 6,000 members! 🍊

A special shoutout to my team members, Varik and Sipan—I can't thank you enough for consistently dedicating your time and effort to our project.
Your commitment doesn't go unnoticed, and I speak for all of us when I say how much we value and appreciate it.

Cheers to a fantastic team! 🌟
Nairi

❓ CHALLENGE #215

function multiply(a, b) {
  if (b === 0) {
    return 0;
  } else if (b > 0) {
    return a + multiply(a, b - 1);
  } else {
    return -multiply(a, -b);
  }
}

console.log(multiply(7, 5));

❓ CHALLENGE #216

function* fibonacci() {
  let [prev, curr] = [0, 1];
  while (true) {
    [prev, curr] = [curr, prev + curr];
    yield curr;
  }
}

const fib = fibonacci();

console.log(fib.next().value);
console.log(fib.next().value);
console.log(fib.next().value);

👀 How Marketing Changed OOP in JavaScript

A look at JavaScript’s earliest history and its prototypal nature.

JUAN DIEGO RODRÍGUEZ

❓ CHALLENGE #217

const asyncFunction = async () => {
  const delay = (ms) => new Promise(resolve => setTimeout(resolve, ms));

  const result = await Promise.race([delay(100), delay(500)]);
  return result;
};

asyncFunction().then(value => console.log(value));

❓ CHALLENGE #218

const matrix = [
  [1, 2, 3],
  [4, 5, 6],
  [7, 8, 9],
];

let columnSums = [];

for (let i = 0; i < matrix[0].length; i++) {
  let sum = 0;
  for (let j = 0; j < matrix.length; j++) {
    sum += matrix[j][i];
  }
  columnSums.push(sum);
}

console.log(columnSums);

🤔 Learn How Modern JS Frameworks Work by Building One

Building things is a great way to learn, even if you don’t end up using what you built. Even better is when someone who’s already built something successful introduces you to the process. Nolan doesn’t go super deep but far enough to whet your appetite and for you to learn a few things by taking it further.

NOLAN LAWSON

❓ CHALLENGE #219

const matrix = [
  [1, 2, 3],
  [4, 5, 6],
  [7, 8, 9],
];

let flattenedMatrix = [];

for (let i = 0; i < matrix.length; i++) {
  for (let j = 0; j < matrix[i].length; j++) {
    flattenedMatrix.push(matrix[i][j]);
  }
}

console.log(flattenedMatrix);

👀 Name Checker: Check if a Project Name is Taken

An online tool that checks a bunch of different package registries (npm, GitHub, GitLab, PyPI, Maven, RubyGems, Go packages, Rust crate, etc.) to see if the name is used by another project.

TODD COOKE

❓ CHALLENGE #220

const data = [1, 2, 3, 4, 5];

const result = data.flatMap(num => [num * 2, num * 3]);

console.log(result);

👩‍💻👩‍💻 Maglev: A Serious Look at V8’s Fastest Optimizing JIT

A deep dive into how the V8 JavaScript engine (as used in Node) is getting faster thanks to work on its Maglev JIT compiler which sits in between the existing Sparkplug and TurboFan compilers (which offer distinct compilation vs execution speed tradeoffs).

THE V8 TEAM