Unused Ports

Update src/Main.elm and then use yarn run build to refresh main.js.

Ports Available

Elm Output

Findings

• It does not matter whether the port is returned directly or via other function calls.
• Being exposed from a module has no effect on its own.
• A port is only made available when:
  • An outgoing port is returned from an application's update.
  • An incoming port is returned from an application's subscriptions.
• When there are no available ports, app.ports is undefined.
• There is no difference with --optimize.