| Name | Lines of code | Maintainability | Test coverage |
| ts/core/observable.ts | 63 | A 1 hr | |
| ts/core/observer-extras.ts | 29 | A 0 mins | |
| ts/core/observer-lite.ts | 29 | A 2 hrs | |
| ts/core/observer.ts | 9 | A 0 mins | |
| ts/core/scheduledobserver.ts | 11 | A 0 mins | |
| ts/core/subjects/anonymoussubject.ts | 10 | A 2 hrs | |
| ts/core/subjects/asyncsubject.ts | 10 | A 2 hrs | |
| ts/core/subjects/behaviorsubject.ts | 13 | A 0 mins | |
| ts/core/subjects/replaysubject.ts | 13 | A 0 mins | |
| ts/core/subjects/subject.ts | 28 | A 0 mins | |
| ts/core/testing/mockdisposable.ts | 0 | A 0 mins | |
| ts/core/testing/mockobserver.ts | 14 | A 0 mins | |
| ts/core/testing/reactivetest.ts | 25 | A 0 mins | |
| ts/core/testing/recorded.ts | 20 | A 0 mins | |
| ts/core/testing/subscription.ts | 16 | A 0 mins | |
| ts/core/testing/testscheduler.ts | 30 | A 0 mins | |
| ts/tsconfig.json |