How would one do async JavaScript setters?

Question

I'm trying to do asynchronous setters using async/await keywords.

Here some fakes database functions that takes time

function getProjectFromDatabase() {
    return new Promise((resolve, reject) => {
        setTimeout(() => resolve('My cool project!'), 500) // 500ms latency
    });
}

function setProjectToDatabase(projectName) {
    return new Promise((resolve, reject) => {
        setTimeout(() => resolve('set!'), 500) // 500ms latency
    });
}

Here is an example of implementation for the user

let user = {

    // Getter
    get project() {
        return (async () => {
            return await getProjectFromDatabase();
        })();
    },

    // Setter
    set project(projectName) {
        return (async () => {
            return await setProjectToDatabase(projectName);
        })();
    },

    // Method 
    setProject(projectName) {
        return (async () => {
            return await setProjectToDatabase(projectName);
        })();
    }
};

And here is an example of use

(async function() {
    console.log(await user.project); // Getter works!
    await user.setProject('My new cool project!'); // Method works!
    await (user.project = 'Another project'); // Setter doesn't work...
})();

But the return value from the setter function seems ignored.

How could I do that?

Answer 1

The assignment expression always evaluates to its right-hand side.

  a.b.c = "This is what it gets evaluated to"

there is no way to change that.