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Editing File: /home/ubuntu/todaykat-frontend-base/node_modules/react-infinite-scroll-component/dist/index.umd.js

var InfiniteScroll = (function (React) {
    'use strict';

var React__default = 'default' in React ? React['default'] : React;

/*! *****************************************************************************
    Copyright (c) Microsoft Corporation. All rights reserved.
    Licensed under the Apache License, Version 2.0 (the "License"); you may not use
    this file except in compliance with the License. You may obtain a copy of the
    License at http://www.apache.org/licenses/LICENSE-2.0

THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
    WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
    MERCHANTABLITY OR NON-INFRINGEMENT.

See the Apache Version 2.0 License for specific language governing permissions
    and limitations under the License.
    ***************************************************************************** */
    /* global Reflect, Promise */

function __extends(d, b) {
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    }

/* eslint-disable no-undefined,no-param-reassign,no-shadow */

/**
     * Throttle execution of a function. Especially useful for rate limiting
     * execution of handlers on events like resize and scroll.
     *
     * @param  {Number}    delay          A zero-or-greater delay in milliseconds. For event callbacks, values around 100 or 250 (or even higher) are most useful.
     * @param  {Boolean}   [noTrailing]   Optional, defaults to false. If noTrailing is true, callback will only execute every `delay` milliseconds while the
     *                                    throttled-function is being called. If noTrailing is false or unspecified, callback will be executed one final time
     *                                    after the last throttled-function call. (After the throttled-function has not been called for `delay` milliseconds,
     *                                    the internal counter is reset)
     * @param  {Function}  callback       A function to be executed after delay milliseconds. The `this` context and all arguments are passed through, as-is,
     *                                    to `callback` when the throttled-function is executed.
     * @param  {Boolean}   [debounceMode] If `debounceMode` is true (at begin), schedule `clear` to execute after `delay` ms. If `debounceMode` is false (at end),
     *                                    schedule `callback` to execute after `delay` ms.
     *
     * @return {Function}  A new, throttled, function.
     */
    function throttle (delay, noTrailing, callback, debounceMode) {
      /*
       * After wrapper has stopped being called, this timeout ensures that
       * `callback` is executed at the proper times in `throttle` and `end`
       * debounce modes.
       */
      var timeoutID;
      var cancelled = false; // Keep track of the last time `callback` was executed.

var lastExec = 0; // Function to clear existing timeout

function clearExistingTimeout() {
        if (timeoutID) {
          clearTimeout(timeoutID);
        }
      } // Function to cancel next exec

function cancel() {
        clearExistingTimeout();
        cancelled = true;
      } // `noTrailing` defaults to falsy.

if (typeof noTrailing !== 'boolean') {
        debounceMode = callback;
        callback = noTrailing;
        noTrailing = undefined;
      }
      /*
       * The `wrapper` function encapsulates all of the throttling / debouncing
       * functionality and when executed will limit the rate at which `callback`
       * is executed.
       */

function wrapper() {
        var self = this;
        var elapsed = Date.now() - lastExec;
        var args = arguments;

if (cancelled) {
          return;
        } // Execute `callback` and update the `lastExec` timestamp.

function exec() {
          lastExec = Date.now();
          callback.apply(self, args);
        }
        /*
         * If `debounceMode` is true (at begin) this is used to clear the flag
         * to allow future `callback` executions.
         */

function clear() {
          timeoutID = undefined;
        }

if (debounceMode && !timeoutID) {
          /*
           * Since `wrapper` is being called for the first time and
           * `debounceMode` is true (at begin), execute `callback`.
           */
          exec();
        }

clearExistingTimeout();

if (debounceMode === undefined && elapsed > delay) {
          /*
           * In throttle mode, if `delay` time has been exceeded, execute
           * `callback`.
           */
          exec();
        } else if (noTrailing !== true) {
          /*
           * In trailing throttle mode, since `delay` time has not been
           * exceeded, schedule `callback` to execute `delay` ms after most
           * recent execution.
           *
           * If `debounceMode` is true (at begin), schedule `clear` to execute
           * after `delay` ms.
           *
           * If `debounceMode` is false (at end), schedule `callback` to
           * execute after `delay` ms.
           */
          timeoutID = setTimeout(debounceMode ? clear : exec, debounceMode === undefined ? delay - elapsed : delay);
        }
      }

wrapper.cancel = cancel; // Return the wrapper function.

return wrapper;
    }

return InfiniteScroll;

}(React));
//# sourceMappingURL=index.umd.js.map

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