Promises represent the eventual completion (or failure) of an asynchronous operation and its resulting value, while async/await is syntactic sugar for working with Promises, allowing asynchronous code to be written in a more synchronous manner. They help avoid callback hell and improve readability. Example using async/await:
const fetchData = async () => {
try {
const response = await fetch('https://api.example.com/data');
const data = await response.json();
console.log(data);
} catch (error) {
console.error('Error fetching data:', error);
}
};
fetchData();