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

## Statements: 96.15% (50 / 52) Branches: 62.5% (15 / 24) Functions: 100% (13 / 13) Lines: 100% (44 / 44) Ignored: none

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

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    1'use strict';

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

    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);

    var _schedulersNextTick = require('../schedulers/nextTick');

    var _schedulersNextTick2 = _interopRequireDefault(_schedulersNextTick);

    function throttle(delay) {
        var scheduler = arguments.length <= 1 || arguments[1] === undefined ? _schedulersNextTick2['default'] : arguments[1];

        return this.lift(new ThrottleOperator(delay, scheduler));
    }

    var ThrottleOperator = (function () {
        function ThrottleOperator(delay, scheduler) {
            _classCallCheck(this, ThrottleOperator);

            this.delay = delay;
            this.scheduler = scheduler;
        }

        ThrottleOperator.prototype.call = function call(subscriber) {
            return new ThrottleSubscriber(subscriber, this.delay, this.scheduler);
        };

        return ThrottleOperator;
    })();

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

        function ThrottleSubscriber(destination, delay, scheduler) {
            _classCallCheck(this, ThrottleSubscriber);

            _Subscriber.call(this, destination);
            this.delay = delay;
            this.scheduler = scheduler;
        }

        ThrottleSubscriber.prototype._next = function _next(value) {
            if (!this.throttled) {
                this.add(this.throttled = this.scheduler.schedule(dispatchNext, this.delay, { value: value, subscriber: this }));
            }
        };

        ThrottleSubscriber.prototype.throttledNext = function throttledNext(value) {
            this.clearThrottle();
            this.destination.next(value);
        };

        ThrottleSubscriber.prototype.clearThrottle = function clearThrottle() {
            var throttled = this.throttled;
            Eif (throttled) {
                throttled.unsubscribe();
                this.remove(throttled);
            }
        };

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

    function dispatchNext(_ref) {
        var value = _ref.value;
        var subscriber = _ref.subscriber;

        subscriber.throttledNext(value);
    }
    module.exports = exports['default'];