How to create and run a Dart project on the command line - dart

Question

I wanted to create a Dart project to play around with, but I couldn't figure out how to create one from the command line.
I tried
dart create playground.dart
I also tried
dart playground.dart
but the code I pasted in had dependency requirements.

Answer 1

Update
Dart now supports creating projects directly. No more need for stagehand.
dart create playground
This creates a folder named playground with a Dart project inside.
Alternate answer
1. Create a new folder
mkdir playground
2. Add a dart file with a main() function
playground.dart
void main() {
print("hello world");
}
3. Run the app
dart playground.dart
If your app has dependencies...
4. Setup configuration
Create a pubspec.yaml file
touch pubspec.yaml
Paste in any dependencies that you have
name: playground
description: Just a place to practice
version: 0.0.1
dependencies:
crypto: ^2.0.6
5. Get dependencies
pub get

Answer 2

The easiest way to create a new project is to use Stagehand. This is the same that IntelliJ uses when creating a new Dart project.
You can install it with this command
pub global activate stagehand
And then all you have to do to use it is
mkdir playground
cd playground
stagehand <generator-name>
These are the different generator you can use right now:
console-full - A command-line application sample.
package-simple - A starting point for Dart libraries or applications.
server-shelf - A web server built using the shelf package.
web-angular - A web app with material design components.
web-simple - A web app that uses only core Dart libraries.
web-stagexl - A starting point for 2D animation and games.