performance function

Performance performance([
  1. App? app
])

Accesses the Performance service for the default App or a given app.

See: firebase.google.com/docs/reference/js/firebase.performance.

Implementation

Performance performance([App? app]) {
  final jsObject = (app != null)
      ? firebase.performance(app.jsObject)
      : firebase.performance();

  return Performance.getInstance(jsObject);
}