File extension

readme.md

File extension

Created with <3 with dartpad.dev.

main.dart

void main() {
  String path = "assets/images/abc.svg";

  String file = path.fileExtension();

  print("File extension: $file");
}

extension StringExtension on String {
  String fileExtension() {
    int dotIndex = lastIndexOf('.');
    if (dotIndex != -1 && dotIndex < length - 1) {
      return substring(dotIndex + 1);
    } else {
      return ""; // No extension found
    }
  }
}