size method
Implementation
int size() {
int subSize = 0;
for (int i = 0; i < 4; i++) {
if (subnode[i] != null) {
subSize += subnode[i]!.size();
}
}
return subSize + items.length;
}
int size() {
int subSize = 0;
for (int i = 0; i < 4; i++) {
if (subnode[i] != null) {
subSize += subnode[i]!.size();
}
}
return subSize + items.length;
}