function returns nearby visible wifi hotspots

cpp

String* getWifiHotspots() {
//  String* arr = new String[];
  String arr[100];
  Serial.print("Scan start ... ");
  int n = WiFi.scanNetworks();
  for (int i = 0; i < n; i++)
  {
    arr[i] = WiFi.SSID(i).c_str();
  }
  return arr;
}