Gallery - Before & After

Explore real-world transformations showing how x2y dev tools simplify workflows and improve quality.

Loop to Array Methods

Idiom Improvement

40% more readable

❌ Before

for (let i = 0; i < arr.length; i++) {
  console.log(arr[i]);
}

✅ After

arr.forEach(item => console.log(item));

Promise Chain to Async/Await

Async Improvement

50% more readable

❌ Before

fetch('/api/data')
  .then(response => response.json())
  .then(data => console.log(data))
  .catch(error => console.error(error));

✅ After

async function getData() {
  try {
    const response = await fetch('/api/data');
    const data = await response.json();
    console.log(data);
  } catch (error) {
    console.error(error);
  }
}

DOM Query Optimization

Performance

100x faster

❌ Before

for (let i = 0; i < items.length; i++) {
  document.getElementById('myElement').innerHTML += items[i];
}

✅ After

const element = document.getElementById('myElement');
let html = '';
for (let item of items) {
  html += item;
}
element.innerHTML = html;

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