getValue method
Implementation
Object getValue({int index, String key}) {
var result;
if (null != index && null == key) {
if (_internalList.length > index) {
result = _internalList[index];
}
}
if (null != key && null == index) {
if (_internalMap.containsKey(key)) {
result = _internalMap[key];
}
}
return result;
}