getArg<T> static method
Tries to return item of given key
or Type.
If none found, then defaultValue
is returned.
Currently supports Parse.getArgFromMap, Parse.getArgFromList and Parse.getArgFromString
Implementation
static T? getArg<T>(dynamic value,
{dynamic key, bool Function(dynamic)? predicate, T? defaultValue}) {
if (value is T && T != dynamic) {
return value;
}
if (value is ControlArgs) {
return value.get<T>(key: key, defaultValue: defaultValue);
}
if (value is Map) {
return getArgFromMap<T>(value,
key: key, predicate: predicate, defaultValue: defaultValue);
}
if (value is Iterable) {
return getArgFromList<T>(value,
predicate: predicate, defaultValue: defaultValue);
}
if (value is String) {
return getArgFromString<T>(value,
key: key, predicate: predicate, defaultValue: defaultValue);
}
return defaultValue;
}