url method
Generates a URL for the given route name and params.
Implementation
String? url(String name, {Map<String, dynamic> params = const {}}) {
final path = _namedRoutes[name];
if (path == null) return null;
var result = path;
params.forEach((key, value) {
result = result.replaceFirst(':$key', value.toString());
});
return result;
}