Web Apis Development Tutorials, Guides & Insights

const fetchData = () => {
    return new Promise((resolve, reject) => {
        setTimeout(() => {
            resolve('Data fetched successfully!');
        }, 1000);
    });
};

fetchData()
    .then(response => {
        console.log(response); // Output: Data fetched successfully!
        return 'Processing data...';
    })
    .then(processedData => {
        console.log(processedData); // Output: Processing data...
        return 'Data processing complete!';
    })
    .then(finalMessage => {
        console.log(finalMessage); // Output: Data processing complete!
    })
    .catch(error => {
        console.error(error);
    });

Error handling in Promises is straightforward. If an error occurs at any point in the Promise chain, it will be caught by the catch block.