getArgFromString<T> static method
T?
getArgFromString<T>(})
Converts input value
to json, then tries to return object of given key
, Type or predicate
.
If none found, then defaultValue
is returned.
Implementation
static T? getArgFromString<T>(String? value,
{dynamic key, bool Function(dynamic)? predicate, T? defaultValue}) {
if (value == null || value.isEmpty) {
return defaultValue;
}
final json = jsonDecode(value);
if (json is Map) {
return getArgFromMap<T>(json,
key: key, predicate: predicate, defaultValue: defaultValue);
}
if (json is Iterable) {
return getArgFromList<T>(json,
predicate: predicate, defaultValue: defaultValue);
}
return defaultValue;
}