I was coding a simple Google Firebase Cloud Firestore system in node.js, and I put the script in another file. I wrote a function to get the data from a document, but when I tested it, it didn't work. Doing a console.log from the .then() works perfectly fine, but I need to pass the value to another script.

Function:

// firebase.js
async function getAllDocsFromCollection(collection){
  let data = [];
  db.collection(collection).get().then((querySnapshot) => {
    querySnapshot.forEach((doc) => {
      data.push(doc.id);
      data.push(doc.data());
    });
    console.log(data); // Logs correct data
  });
  console.log(data); // Doesn't log correct data
  return data; // Doesn't return correct data
}