What are some examples of using async/await in JavaScript?

Can you explain async/await in JavaScript with some examples?

Sure! Async/await is a way to handle asynchronous operations in JavaScript. It makes your code look synchronous. For example, here's a simple async function:

async function fetchData() {
    const response = await fetch('https://api.example.com/data');
    const data = await response.json();
    return data;
}

This function fetches data from an API and waits for the response before proceeding.

What happens if the fetch fails?

Good question! You can handle errors using try/catch. Here's how you can modify the previous example:

async function fetchData() {
    try {
        const response = await fetch('https://api.example.com/data');
        if (!response.ok) throw new Error('Network response was not ok');
        const data = await response.json();
        return data;
    } catch (error) {
        console.error('There was a problem with the fetch operation:', error);
    }
}

Can I use async/await with multiple promises?

Yes, you can! You can use Promise.all to wait for multiple promises. Here's an example:

async function fetchMultipleData() {
    try {
        const [data1, data2] = await Promise.all([
            fetch('https://api.example.com/data1'),
            fetch('https://api.example.com/data2')
        ]);
        const json1 = await data1.json();
        const json2 = await data2.json();
        return { json1, json2 };
    } catch (error) {
        console.error('Error fetching data:', error);
    }
}