Dart: Scalable Application Development

Setting up the checked and production modes

When developing or maintaining, an app's execution speed is not so important, but information about the program's execution is. On the other hand, when the app is put in a customer environment to run, the requirements are nearly the opposite; speed is of utmost importance, and the less information the program reveals about itself, the better. That's why when an app runs in the Dart Virtual Machine (VM), it can do so in two runtime modes:

• The Checked mode: This is also known as the debug mode. The checked mode is used during development and gives you warnings and errors of possible bugs in the code.
• The Production mode: This is also known as the release mode. You deploy an app in the production mode when ...