Scope inside lambda functions (callbacks)?

Question

typescript

I have Observable callback.

this.clientService.checkConnectionToONT(this.tan).subscribe(
      response => {
        this.etcdService.waitOntRegistrationEvents(response).subscribe(
          registrationEvent => {
             if (response.body === OntState.Online) 
                 this.disableDuringCall = false;
          });
       ...

And my question is this. Inside response there is a registrationEvent lambda. Is response available inside registrationEvent? Can I access it as described above?

Answer 1

Why not open the debugger yourself and take a look?
Answer: response will get into the closure of your inner function and will be visible.
And do not tear off the parameter like that. Write

this.clientService.checkConnectionToONT(this.tan)
  .subscribe((response) => {
    .....