Engineering1 min read
Asynchronous JavaScript
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Handling asynchronous operations is critical in JavaScript. The Evolution 1. Callbacks (Callback Hell) 2. Promises 3. Async/Await Code Comparison Using Promises...
Handling asynchronous operations is critical in JavaScript.
The Evolution
- Callbacks (Callback Hell)
- Promises
- Async/Await
Code Comparison
Using Promises:
javascript
fetchData()
.then(data => process(data))
.catch(err => console.error(err));Using Async/Await:
javascript
async function getData() {
try {
const data = await fetchData();
return process(data);
} catch (err) {
console.error(err);
}
}