isEmpty method
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;
}