Sensor and side-effect library for rxjs. Do you want to contribute? See, help wanted.

• location$ — browser location and history sensor.
  • pathname$ — browser location pathname sensor.
• network$ — returns consolidate network status info.
  • onLine$ — boolean whether user is on-line.
  • connection$ — information about user's network connection.
• windowSize$ and windowSizeRaf$ — browser window dimension sensor.
• darkTheme$ — emits true if UI should use dark theme.
• matchMedia$() — returns boolean indicating media query match.
  • colorSchemeDark$ — whether user selected dark theme in system settings.
  • colorSchemeLight$ — whether user selected light theme in system settings.
  • colorSchemeNoPreference$ — whether user has no preference for color scheme.
• stdin$ — listen for data coming from STDIN.
• ansiKeys$ — listen for ANSI terminal key presses.

• raf() — de-bounces events using window.requestAnimationFrame.

• fromStream() — constructs observable from Node.js readable stream.

Most observables imported from this library have ReadonlyBehaviorSubject type. Which is an Observable with an extra .getValue() to access the current value of the observable.

type ReadonlyBehaviorSubject<T> = Observable<T> & Pick<BehaviorSubject<T>, 'getValue'>;

Unlicense — public domain.