Software zum Installieren eines Smart-Mirror Frameworks , zum Nutzen von hochschulrelevanten Informationen, auf einem Raspberry-Pi.
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index.js 1.1KB

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  1. "use strict";
  2. function noop() { }
  3. function once(emitter, name) {
  4. const o = once.spread(emitter, name);
  5. const r = o.then((args) => args[0]);
  6. r.cancel = o.cancel;
  7. return r;
  8. }
  9. (function (once) {
  10. function spread(emitter, name) {
  11. let c = null;
  12. const p = new Promise((resolve, reject) => {
  13. function cancel() {
  14. emitter.removeListener(name, onEvent);
  15. emitter.removeListener('error', onError);
  16. p.cancel = noop;
  17. }
  18. function onEvent(...args) {
  19. cancel();
  20. resolve(args);
  21. }
  22. function onError(err) {
  23. cancel();
  24. reject(err);
  25. }
  26. c = cancel;
  27. emitter.on(name, onEvent);
  28. emitter.on('error', onError);
  29. });
  30. if (!c) {
  31. throw new TypeError('Could not get `cancel()` function');
  32. }
  33. p.cancel = c;
  34. return p;
  35. }
  36. once.spread = spread;
  37. })(once || (once = {}));
  38. module.exports = once;
  39. //# sourceMappingURL=index.js.map