joinPath function Null safety

String joinPath(
  1. String path1,
  2. String path2
)

Implementation

String joinPath(String path1, String path2) {
  final cleanPath1 =
      path1.endsWith('/') ? path1.substring(0, path1.length - 1) : path1;
  final cleanPath2 = path2.startsWith('/') ? path2.substring(1) : path2;
  return '$cleanPath1/$cleanPath2';
}