On gists

Promise.all

JavaScript

examples.js Raw #

// Parallel
async function getData() {
    const [user, posts] = await Promise.all([
        fetchUserData(),
        fetchPostsData()
    ]);
    console.log(user, posts);
}


// non parallel
function getData() {
    return Promise.all([fetchUser(), fetchPosts()])
        .then(([user, posts]) => {
            console.log(user, posts);
        })
        .catch((error) => {
            console.error(error); 
        });
}