unction filterTable() {
  // Variables
  let dropdown, table, rows, cells, country, filter;
  dropdown = document.getElementById("countriesDropdown");
  table = document.getElementById("myTable");
  rows = table.getElementsByTagName("tr");
  filter = dropdown.value;

  // Loops through rows and hides those with countries that don't match the filter
  for (let row of rows) { // `for...of` loops through the NodeList
    cells = row.getElementsByTagName("td");
    country = cells[1] || null; // gets the 2nd `td` or nothing
    // if the filter is set to 'All', or this is the header row, or 2nd `td` text matches filter
    if (filter === "All" || !country || (filter === country.textContent)) {
      row.style.display = ""; // shows this row
    }
    else {
      row.style.display = "none"; // hides this row
    }
  }
}

  All
  Sweden
  Germany



  
Name
Country

  
Inga
Sweden
  
Helena
Sweden
  
Hans
Germany
  
Anna
Germany