How do promises program flow work in javascript?

[eaglehopes]

Is there any similarity between promises and async-threads in java(or any other lang)? 

Edited June 26, 2023 by eaglehopes
chose more suitable word

[requinix]

Basically anything that has "await" and/or "async" keywords works the same way.

[Strider64]

"await" is great if you need have all the data before you moving on especially good when developing a game.

// Fetch the First ID
const fetchFirstId = async () => {
    try {
        // fetch the data from the server
        const response = await fetch('get-first-id.php', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json'
            },
            body: JSON.stringify({resetScore: false})
        });

        // parse the response as JSON
        const data = await response.json();
        id = data.first_id; // Grab the First ID the DB Table
        //console.log(id);
        await changeImageSource(data.image);
        await fetchQuestion();
        await fetchWord(); // fetch the answers
        //await fetchImage();
    } catch (error) {
        console.error(error);
    }
};