• firebase.
• performance

Callable

• performance ( app ? :  App ) : Performance

• Gets the Performance service.

  firebase.performance() can be called with no arguments to access the default app's Performance service. The Performance service does not work with any other app.

  The Performance SDK does not work in a Node.js environment.

  example

  // Get the Performance service for the default app
  const defaultPerformance = firebase.performance();

  Parameters

  • Optional app: App

    The app to create a performance service for. Performance Monitoring only works with the default app. If not passed, uses the default app.

  Returns Performance