How to modify data before resolving a promise in Javascript

I have a database with text entries. I want to search for the city name, and return the country.

I have an async function which returns a thenable promise.

getText('New').then(alert(result));

After an await on a 2nd function, I want to resolve the promise with one item from the object found. i.e. TheText .

I have this code:

getText=async()=>{

const TheData=await getDataSet('City','New York'); //{country:'USA',city:'New York}
const TheText=TheData['country']; //'USA'

return new Promise((resolve,reject)=>{
  const request=??;
  request.onsuccess=()=>{resolve(TheText)};);

}

How can I modify the code above to return TheText as a resolved thenable promise.

Async function already returns a promise, you do not need return another one inside it or you'll get promise in promise

getText = async () => {

  //const TheData = await getDataSet('City', 'New York'); //{country:'USA',city:'New York}
  //const TheText = TheData['country']; //'USA'
  const TheText='USA';
  console.log(TheText.constructor.name)
  return TheText;

}

res=getText();
console.log(res.constructor.name) //This is already promise

res.then((r) => {
  console.log(r)
})

Another solution - just to use your existing promise. As your getDataSet already async function, we can continue with its then() and as it will also return promise - just return it from our function. In this case your function does not need to be async.

getText=()=>{
    return getDataSet('City','New York').then((TheData)=>{
        return TheData['country'];
    })
}