# Code coverage report for RxJS/dist/cjs/operators/defaultIfEmpty.js

## Statements: 95.12% (39 / 41) Branches: 72.73% (16 / 22) Functions: 100% (11 / 11) Lines: 100% (33 / 33) Ignored: none

All files » RxJS/dist/cjs/operators/ » defaultIfEmpty.js

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    1'use strict';

    exports.__esModule = true;
    exports['default'] = defaultIfEmpty;

    function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

    function _inherits(subClass, superClass) { Iif (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); Eif (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

    function _classCallCheck(instance, Constructor) { Iif (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }

    var _Subscriber2 = require('../Subscriber');

    var _Subscriber3 = _interopRequireDefault(_Subscriber2);

    function defaultIfEmpty() {
        var defaultValue = arguments.length <= 0 || arguments[0] === undefined ? null : arguments[0];

        return this.lift(new DefaultIfEmptyOperator(defaultValue));
    }

    var DefaultIfEmptyOperator = (function () {
        function DefaultIfEmptyOperator(defaultValue) {
            _classCallCheck(this, DefaultIfEmptyOperator);

            this.defaultValue = defaultValue;
        }

        DefaultIfEmptyOperator.prototype.call = function call(subscriber) {
            return new DefaultIfEmptySubscriber(subscriber, this.defaultValue);
        };

        return DefaultIfEmptyOperator;
    })();

    var DefaultIfEmptySubscriber = (function (_Subscriber) {
        _inherits(DefaultIfEmptySubscriber, _Subscriber);

        function DefaultIfEmptySubscriber(destination, defaultValue) {
            _classCallCheck(this, DefaultIfEmptySubscriber);

            _Subscriber.call(this, destination);
            this.defaultValue = defaultValue;
            this.isEmpty = true;
        }

        DefaultIfEmptySubscriber.prototype._next = function _next(x) {
            this.isEmpty = false;
            this.destination.next(x);
        };

        DefaultIfEmptySubscriber.prototype._complete = function _complete() {
            if (this.isEmpty) {
                this.destination.next(this.defaultValue);
            }
            this.destination.complete();
        };

        return DefaultIfEmptySubscriber;
    })(_Subscriber3['default']);

    module.exports = exports['default'];