How do different programming languages handle async error handling?

How do different programming languages handle async error handling?

Different programming languages have various approaches to async error handling. For example, JavaScript uses Promises and async/await syntax, while Python has asyncio with try/except blocks. What specific language are you interested in?

I'm particularly interested in JavaScript. Can you explain how async/await works?

Sure! In JavaScript, async/await allows you to write asynchronous code that looks synchronous. You use the 'async' keyword before a function to make it return a Promise, and 'await' pauses the execution until the Promise is resolved or rejected.

What happens if an error occurs in an async function?

If an error occurs in an async function, it can be caught using a try/catch block. The catch block will handle any errors that arise during the execution of the awaited Promises.

Can you give me an example of that?

Certainly! Here's a simple example:

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

In this example, if the fetch fails, the error will be caught and logged.