@lifaon/rx-js-light/src/observable/pipes/built-in/without-notifications/others/take/take-observable.mjs

Blazing fast Observables

import {asyncUnsubscribe} from "../../../../../../misc/helpers/async-unsubscribe.mjs";
import {empty} from "../../../../../built-in/from/without-notifications/values/empty/empty.mjs";
export function takeObservable(subscribe, count) {
  if (count <= 0) {
    return empty();
  } else {
    return emit => {
      let running = true;
      const unsubscribe = subscribe(value => {
        if (running) {
          --count;
          if (count === 0) {
            running = false;
            asyncUnsubscribe(() => unsubscribe);
          }
          emit(value);
        }
      });
      return () => {
        if (running) {
          running = false;
          unsubscribe();
        }
      };
    };
  }
}