isEmpty method

bool isEmpty()

Implementation

bool isEmpty() {
  bool b = false;
  if (data == null) {
    b = true;
  } else if (data is List) {
    b = (data as List).isEmpty;
  } else if (data is Map) {
    b = (data as Map).isEmpty;
  } else if (data is Set) {
    b = (data as Set).isEmpty;
  } else if(data is BloxData){
    b = (data as BloxData).isEmpty;
  }
  return b;
}