Asynchronous JavaScript: Promises, Async/Await, and Fetch API

Intermediate

⚙️ Asynchronous JavaScript: Promises & async/await

Modern web applications rely heavily on asynchronous operations, such as fetching data from servers. JavaScript provides mechanisms like Promises and async/await for handling this effectively.

🔮 Promises

Promises represent the eventual completion (or failure) of an asynchronous operation:

fetch('https://api.example.com/data')
  .then(response => response.json())
  .then(data => console.log(data))
  .catch(error => console.error('Error:', error));

⏳ async/await

async/await syntax simplifies promise handling:

async function fetchData() {
  try {
    const response = await fetch('https://api.example.com/data');
    const data = await response.json();
    console.log(data);
  } catch (error) {
    console.error('Error:', error);
  }
}
fetchData();

🚀 These tools allow applications to perform multiple tasks simultaneously, improving performance and user experience.