Syncing Array Fields Values to Google Sheets showing [Ljava.lang.Object;@......]

Minimal Code to Reproduce the Problem

  const allDocuments = allDocumentsWithMetadata.map(function(documentWithMetadata) {
    const document = documentWithMetadata.obj
    return document;
  });
 
  const firstDocument = allDocuments[0];  
  const columns = Object.keys(firstDocument).sort();
  Logger.log(columns);
  Logger.log(firstDocument);
  const sheet = SpreadsheetApp.getActiveSheet();
  sheet.appendRow(columns);
  
  allDocuments.forEach(function(document) {
    const row = columns.map(function(column) {
      return document[column];
    });
    sheet.appendRow(row);
  });

Explain the Problem in Detail

Firestore Documents have array fields like this

But in Google Sheets, getting results like this

Other Comments

Library Version: 33

[LaughDonor]

Here’s your hint

Surprise inside!

function(column) {
    const value = document[column];
    if (Array.isArray(value)) {
        return value.join("|");
    } else {
        return value;
    }
});

Please use StackOverflow for other questions as these issues are not related to this library.

[Subroid]

Yes. That’s what I’m also trying to figure out. Can you guide me?

I don’t know what to guide you to.

1. Your issue is unrelated to this library.
2. You haven’t provided the results you’re trying to expect.

I want product name array values to be appeared into one cell and separated by pipe