multitude/dist/push/operators/tap/finalize.js

Comprehensive streams for push and pull

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.finalize = finalize;

var _Observable = require("../../classes/Observable");

var _transform = require("../../utils/transform");

var _teardown2 = require("../../utils/teardown");

function finalize(teardown) {
  return (0, _transform.transform)(observable => {
    if (!teardown) return observable;
    return new _Observable.Observable(obs => {
      const subscription = observable.subscribe(obs);
      return () => {
        subscription.unsubscribe();
        (0, _teardown2.teardown)(teardown)();
      };
    });
  });
}
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