How to correctly insert an array into a table row?

Question

Google Apps Script

How to correctly insert an array into a string?
Wrote this code

function AppendRow() {
  let sheet = SpreadsheetApp.getActiveSpreadsheet().getSheetByName('Data')[0];
  var array = [
    'Петя',
    44444,
    'Петя',
    44444,
    'Петя',
    44444,
    44444,
    44444,
    44444,
    'Петя',
    'Петя',
    44444,
    'Петя',
    'Петя',
  ];
  sheet.appendRow(array);
  sheet.appendRow(['Frodo', 'Baggins', 'Hobbit', 'The Shire', 33]);
}

Swears writes

TypeError: Cannot read property 'appendRow' of undefined

How to correctly insert an array into a string?

Answer 1

Must be

const sheet = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("Data");