a function that returns the index of a particular resistor color

main.dart

void main() {
  print(getIndex('Red'));
}

// a function that returns the index of a particular resistor color
// taking the color as argument
int getIndex(color) {
  var dict = {
    'Black': 0,
    'Brown': 1,
    'Red': 2,
    'Orange': 3,
    'Yellow': 4,
    'Green': 5,
    'Blue': 6,
    'Violet': 7,
    'Grey': 8,
    'White': 9
  };
  return dict[color];
}