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

Blazing fast Observables

"use strict";
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.firstObservable = void 0;
var async_unsubscribe_1 = require("../../../../../../misc/helpers/async-unsubscribe.cjs");
function firstObservable(subscribe) {
  return function (emit) {
    var running = true;
    var unsubscribe = subscribe(function (value) {
      if (running) {
        running = false;
        (0, async_unsubscribe_1.asyncUnsubscribe)(function () {
          return unsubscribe;
        });
        emit(value);
      }
    });
    return function () {
      if (running) {
        running = false;
        unsubscribe();
      }
    };
  };
}
exports.firstObservable = firstObservable;