Javascript Promise.all() example

promise_all.js

Promise.all([
        fetch('https://jsonplaceholder.typicode.com/posts').then((res) => res.json()),
        fetch('https://jsonplaceholder.typicode.com/users').then((res) => res.json()),
        fetch('https://jsonplaceholder.typicode.com/comments').then((res) => res.json())
        // Fetch more data if needed ...
    ])
.then((data) => {
        console.log('Do something with this data: ', data);
        // Do something ...
})
.catch((error) => {
        console.log('Error messsage: ', error);
        // Error handlings ...
})
.finally(() => {
    console.log('Do something on \'finally\'');
    // Do something ...
});