mergeMapTo.js 1.7 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243
  1. "use strict";
  2. Object.defineProperty(exports, "__esModule", { value: true });
  3. var operators_1 = require("rxjs/operators");
  4. /**
  5. * Projects each source value to the same Observable which is merged multiple
  6. * times in the output Observable.
  7. *
  8. * <span class="informal">It's like {@link mergeMap}, but maps each value always
  9. * to the same inner Observable.</span>
  10. *
  11. * <img src="./img/mergeMapTo.png" width="100%">
  12. *
  13. * Maps each source value to the given Observable `innerObservable` regardless
  14. * of the source value, and then merges those resulting Observables into one
  15. * single Observable, which is the output Observable.
  16. *
  17. * @example <caption>For each click event, start an interval Observable ticking every 1 second</caption>
  18. * var clicks = Rx.Observable.fromEvent(document, 'click');
  19. * var result = clicks.mergeMapTo(Rx.Observable.interval(1000));
  20. * result.subscribe(x => console.log(x));
  21. *
  22. * @see {@link concatMapTo}
  23. * @see {@link merge}
  24. * @see {@link mergeAll}
  25. * @see {@link mergeMap}
  26. * @see {@link mergeScan}
  27. * @see {@link switchMapTo}
  28. *
  29. * @param {ObservableInput} innerObservable An Observable to replace each value from
  30. * the source Observable.
  31. * @param {number} [concurrent=Number.POSITIVE_INFINITY] Maximum number of input
  32. * Observables being subscribed to concurrently.
  33. * @return {Observable} An Observable that emits items from the given
  34. * `innerObservable`.
  35. * @method mergeMapTo
  36. * @owner Observable
  37. */
  38. function mergeMapTo(innerObservable, concurrent) {
  39. if (concurrent === void 0) { concurrent = Number.POSITIVE_INFINITY; }
  40. return operators_1.mergeMapTo(innerObservable, concurrent)(this);
  41. }
  42. exports.mergeMapTo = mergeMapTo;
  43. //# sourceMappingURL=mergeMapTo.js.map