Get random filename

main.dart

import 'dart:math';

void main() {
  print(getRandFilename(8));
}

String getRandFilename(int fileNameLength) {
  Random r = Random();
  int randF = pow(10, fileNameLength);
  randF = r.nextInt(randF);
  return(randF.toString().padLeft(fileNameLength, '0'));
}