JavaScript

🌪 Run your GitHub Actions locally

CHALLENGE ❓

async function asyncFunc() {
  console.log('Async Start');
  await new Promise(resolve => setTimeout(resolve, 100));
  console.log('Async End');
}

console.log('Script Start');
asyncFunc();
setTimeout(() => console.log('Timeout 1'), 50);
setTimeout(() => console.log('Timeout 2'), 150);
console.log('Script End');

👩‍🦯 ESLint now officially supports linting of JSON and Markdown

CHALLENGE ❓

setTimeout(() => {
  console.log('setTimeout 1');
  Promise.resolve().then(() => console.log('Promise 1'));
}, 0);

Promise.resolve().then(() => {
  console.log('Promise 2');
  setTimeout(() => console.log('setTimeout 2'), 0);
});

console.log('Sync');

😂

CHALLENGE ❓

console.log('A');
setTimeout(() => console.log('B'), 0);
Promise.resolve().then(() => console.log('C'));
console.log('D');

🔥 How an incredibly amateur mistake left Arc Browser wide open to hackers

CHALLENGE ❓

console.log(1);
setTimeout(() => console.log(2), 0);
Promise.resolve()
  .then(() => {
    console.log(3);
    return Promise.resolve(4);
  })
  .then(console.log);
console.log(5);

😉Bundling: The Past, Present and Future A history lesson on bundlers, why they’re used, the problems they solve, the current ecosystem, and a look at the potential future for these tools. Devon Govett

CHALLENGE ❓

async function fetchData() {
  console.log('Fetching...');
  await new Promise((resolve) => {
    setTimeout(() => {
      console.log('Data fetched');
      resolve();
    }, 100);
  });
  console.log('Process completed');
}

fetchData();
console.log('End of script');

✌️ VoidZero: A Next-Generation Toolchain for JavaScript Not content to have merely created Vue.js and Vite, JavaScript powerhouse Evan You has unveiled his latest adventure: a $4.6m funded company building an open-source unified development toolchain for the JavaScript ecosystem. With his track record, this is as good an attempt as it gets. Evan You

CHALLENGE ❓

const arr = [1, 2, 3];
const newArr = arr.map(num => num * 2);

newArr.push(4);
arr[0] = 0;

console.log(arr);
console.log(newArr);

😢 Why?