Does Dart have import alias?

问题

I found myself written tedious code when importing files into dart files like the following:

import '../../constants.dart';

I'm wondering if there is any way to create an alias to specific folder like:

import '@shared/constants.dart';

Thanks, Javi.

回答1:

No. Dart do not have import alias.

But you have absolute imports which makes up for it:

import 'package:my_lib/shared/constants.dart

This will import the file /lib/shared/constants.dart

回答2:

Dart doesn't allow you to rename imported identifiers, but it allows you to specify an import prefix

import '../../constants.dart' as foo;

...

foo.ImportedClass foo = foo.ImportedClass();

It allows also to filter imported identifiers like

import '../../constants.dart' show foo hide bar;

See also

• https://www.dartlang.org/guides/language/language-tour#libraries-and-visibility
• What is the difference between "show" and "as" in an import statement?

来源：https://stackoverflow.com/questions/53741749/does-dart-have-import-alias