varargs

Description:

varargs

varargs package #
This package helps developers implement variable length argument functions easily.
The functionality is provided as a extension on specific Function.
See the example for the details
Example #
import 'package:varargs/varargs.dart';

/// The first arguments is a `List<dynamic>` of the positioned arguments,
/// and the second arguments is a `Map<Symbol, dynamic>` of the named arguments.
/// If you want to access a named argument, you should use the `Symbol`
/// instead of the variable name which is usually a `String`.
/// See the below examples in the `example/` directory.
int echo(List positioned, Map named) {
if (named.containsKey('key')) {
// This condition does not pass the test.
// You can not use a `String` to a key.
print(named['key']);
}
// The first method to access the named arguments.
if (named.containsKey(#key2)) {
print(named[#key2]);
}
// The second method to access the named arguments.
if (named.containsKey(Symbol('key3'))) {
print(named[#key3]);
}
return positioned.length + named.length;
}

/// You can also create async functions.
Future<int> asyncEcho(List positioned, Map named) async {
print('This is an async varargs function');
return positioned.length + named.length;
}

void main(List<String> arguments) async {
/// You should call your functions with `varArgs` to transfer the varargs to your functions.
final result = echo.varArgs(
3,
2,
1,
2,
3,
key: 'key with stringified symbol',
key2: 'key2 with #',
key3: 'key3 with `Symbol`',
);
print(result);
print(await asyncEcho.varArgs(3, 2, 1, 2, 3, 2, 2, 3, hi: 'hihi'));
}

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