javascript - Returning function and invoking with Promise.all

Question

function getMyFunction(data) {
    return () => new Promise((resolve, reject) => {
        resolve('here is the value:', data);
    });
}

const myFunction = getMyFunction('a');
Promise.all([
    myFunction,
]).then((result) => {
    console.log('result: ', result);
});

Answer 1

getMyFunction returns a function that returns a promise, so you need to call myFunction to get the promise:

const myFunction = getMyFunction('a');
Promise.all([
    myFunction(), // <-- note here
]).then((result) => {
    console.log('result: ', result);
});