runSequentially function

javascript

// the function is to make sure the answer is correctly return

async function runSequentially(functions) {
    const resolveLists = []
    for (const fu of functions) {
        resolveLists.push(await fu());
    };
    return resolveLists;
}


let counter = 1;
function incrementCounterAsync() {
    return new Promise((resolve, reject) => {
        counter += 1;
        resolve(counter);
    });
}

setTimeout(() => {
    console.log('start');
});

// setTimeout always last execute

// then and catch only pick one

// finally executing in order

let promise = runSequentially([incrementCounterAsync, incrementCounterAsync]);
if (promise) {
    promise
        .then(result => {
            console.log('good: ', result);
            return new Promise((resolve, reject) => {
                resolve('in the promise');
            });
        })
        .finally(() => {
            console.log('finally');
        })
        .catch(error => console.log("error" + error))
        .finally(() => {
            console.log('finally2');
            throw new Error("second finally throw error");
        })
        .then((n) => console.log('2 then', n))
        .catch(error2 => console.log('2 error', error2));

    setTimeout(() => {
        console.log('start2');
    })
}