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

Blazing fast Observables

"use strict";
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.conditionalObservable = void 0;
function conditionalObservable(subscribe, condition) {
  return function (emit) {
    var running = true;
    var unsubscribe = null;
    var lastValue;
    var _unsubscribe = function () {
      if (unsubscribe !== null) {
        unsubscribe();
        unsubscribe = null;
      }
    };
    var unsubscribeOfCondition = condition(function (value) {
      if (value !== lastValue) {
        lastValue = value;
        _unsubscribe();
        if (value && running) {
          unsubscribe = subscribe(emit);
        }
      }
    });
    return function () {
      if (running) {
        running = false;
        unsubscribeOfCondition();
        _unsubscribe();
      }
    };
  };
}
exports.conditionalObservable = conditionalObservable;