function showPages(page, total) {
    var result = [page];
    for (var i = 1; i <= 3; i++) {
      if (page - i > 1) {
        result.unshift(page - i)
      }

      if (page + i < total) {
        result.push(page + i);
      }
    }

    if (page - 4 > 1) {
      result = ['...'].concat(result)
    }

    if (page > 1) {
      result = ['上一页', 1].concat(result)
    }

    if (page + 4 < total) {
      result.push('...');
    }

    if (page < total) {
      result = result.concat([total, '下一页'])
    }
    
    return result.join(' ');
  }

  // test
  var total = 110;  
  for (var i = 1; i <= total; i++) {  
    var ret = showPages(i, total);
    console.log(`${i}:`, ret);
  }

input.on('change', preview);

function preview(e) {
    var file = e.target.files[0];
    var reader = new FileReader();

    reader.onloadend = function () {
        // 图片的 base64 格式, 可以直接当成 img 的 src 属性值
        var dataURL = reader.result;
        var img = new Image();
        img.src = dataURL;
        // 插入到 DOM 中预览
        // ...
    };

    reader.readAsDataURL(file); // 读出 base64

}

/**
 * dataURL to blob, ref to https://gist.github.com/fupslot/5015897
 * @param dataURI
 * @returns {Blob}
 */
function dataURItoBlob(dataURI) {
    var byteString = atob(dataURI.split(',')[1]);
    var mimeString = dataURI.split(',')[0].split(':')[1].split(';')[0];
    var ab = new ArrayBuffer(byteString.length);
    var ia = new Uint8Array(ab);
    for (var i = 0; i < byteString.length; i++) {
        ia[i] = byteString.charCodeAt(i);
    }
    return new Blob([ab], {type: mimeString});
}

var fd = new FormData();
var blob = dataURItoBlob(dataURL);
fd.append('file', blob);


$.ajax({
    type: 'POST',
    url: '/upload',
    data: fd,
    processData: false, // 不会将 data 参数序列化字符串
    contentType: false, // 根据表单 input 提交的数据使用其默认的 contentType
    xhr: function() {
        var xhr = new window.XMLHttpRequest();
        xhr.upload.addEventListener("progress", function(evt) {
            if (evt.lengthComputable) {
                var percentComplete = evt.loaded / evt.total;
                console.log('进度', percentComplete);
            }
        }, false);

        return xhr;
    }
}).success(function (res) {
    // 拿到提交的结果
}).error(function (err) {
    console.error(err);
});

var img = new Image();

img.onload = function () {
    // 当图片宽度超过 400px 时, 就压缩成 400px, 高度按比例计算
    // 压缩质量可以根据实际情况调整
    var w = Math.min(400, img.width);
    var h = img.height * (w / img.width);
    var canvas = document.createElement('canvas');
    var ctx = canvas.getContext('2d');

    // 设置 canvas 的宽度和高度
    canvas.width = w;
    canvas.height = h;

    // 把图片绘制到 canvas 中
    ctx.drawImage(img, 0, 0, w, h);

    // 取出 base64 格式数据
    var dataURL = canvas.toDataURL('image/png');

    // ...
};

img.src = reader.result;

/**
 *
 * @param fn {Function}   实际要执行的函数
 * @param delay {Number}  延迟时间，单位是毫秒（ms）
 *
 * @return {Function}     返回一个“防反跳”了的函数
 */

function debounce(fn, delay) {

  // 定时器，用来 setTimeout
  var timer

  // 返回一个函数，这个函数会在一个时间区间结束后的 delay 毫秒时执行 fn 函数
  return function () {

    // 保存函数调用时的上下文和参数，传递给 fn
    var context = this
    var args = arguments

    // 每次这个返回的函数被调用，就清除定时器，以保证不执行 fn
    clearTimeout(timer)

    // 当返回的函数被最后一次调用后（也就是用户停止了某个连续的操作），
    // 再过 delay 毫秒就执行 fn
    timer = setTimeout(function () {
      fn.apply(context, args)
    }, delay)
  }
}

document.addEventListener('mousemove', debounce(() => console.log(new Date().getTime()), 1000), false);

input.addEventListener('keyup', debounce(() => ajax(...), 1000), false);

  _.debounce = function(func, wait, immediate) {
    var timeout, result;

    var later = function(context, args) {
      timeout = null;
      if (args) result = func.apply(context, args);
    };

    var debounced = restArgs(function(args) {
      if (timeout) clearTimeout(timeout);
      if (immediate) {
        var callNow = !timeout;
        timeout = setTimeout(later, wait);
        if (callNow) result = func.apply(this, args);
      } else {
        timeout = _.delay(later, wait, this, args);
      }

      return result;
    });

    debounced.cancel = function() {
      clearTimeout(timeout);
      timeout = null;
    };

    return debounced;
  };

/**
*
* @param fn {Function}   实际要执行的函数
* @param delay {Number}  执行间隔，单位是毫秒（ms）
*
* @return {Function}     返回一个“节流”函数
*/

function throttle(fn, threshhold) {

  // 记录上次执行的时间
  var last

  // 定时器
  var timer

  // 默认间隔为 250ms
  threshhold || (threshhold = 250)

  // 返回的函数，每过 threshhold 毫秒就执行一次 fn 函数
  return function () {

    // 保存函数调用时的上下文和参数，传递给 fn
    var context = this
    var args = arguments

    var now = +new Date()

    // 如果距离上次执行 fn 函数的时间小于 threshhold，那么就放弃
    // 执行 fn，并重新计时
    if (last && now < last + threshhold) {
      clearTimeout(timer)

      // 保证在当前时间区间结束后，再执行一次 fn
      timer = setTimeout(function () {
        last = now
        fn.apply(context, args)
      }, threshhold)

    // 在时间区间的最开始和到达指定间隔的时候执行一次 fn
    } else {
      last = now
      fn.apply(context, args)
    }
  }
}

 _.throttle = function(func, wait, options) {
    var timeout, context, args, result;
    var previous = 0;
    if (!options) options = {};

    var later = function() {
      previous = options.leading === false ? 0 : _.now();
      timeout = null;
      result = func.apply(context, args);
      if (!timeout) context = args = null;
    };

    var throttled = function() {
      var now = _.now();
      if (!previous && options.leading === false) previous = now;
      var remaining = wait - (now - previous);
      context = this;
      args = arguments;
      if (remaining <= 0 || remaining > wait) {
        if (timeout) {
          clearTimeout(timeout);
          timeout = null;
        }
        previous = now;
        result = func.apply(context, args);
        if (!timeout) context = args = null;
      } else if (!timeout && options.trailing !== false) {
        timeout = setTimeout(later, remaining);
      }
      return result;
    };

    throttled.cancel = function() {
      clearTimeout(timeout);
      previous = 0;
      timeout = context = args = null;
    };

    return throttled;
  };

(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('react')) :
	typeof define === 'function' && define.amd ? define(['exports', 'react'], factory) :
	(factory((global.Helloworld = {}),global.React));
}(this, (function (exports,React) { 'use strict';

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


  var id = 0;
	var px = Math.random();

	var _uid = function _uid(key) {
	  return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
	};

	function createCommonjsModule(fn, module) {
		return module = { exports: {} }, fn(module, module.exports), module.exports;
	}

	var _core = createCommonjsModule(function (module) {
	  var core = module.exports = {
	    version: '2.5.7'
	  };
	  if (typeof __e == 'number') __e = core; // eslint-disable-line no-undef
	});
	var _core_1 = _core.version;

	var _global = createCommonjsModule(function (module) {
	  // https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
	  var global = module.exports = typeof window != 'undefined' && window.Math == Math ? window : typeof self != 'undefined' && self.Math == Math ? self // eslint-disable-next-line no-new-func
	  : Function('return this')();
	  if (typeof __g == 'number') __g = global; // eslint-disable-line no-undef
	});

	var _library = false;

	var _shared = createCommonjsModule(function (module) {
	  var SHARED = '__core-js_shared__';
	  var store = _global[SHARED] || (_global[SHARED] = {});
	  (module.exports = function (key, value) {
	    return store[key] || (store[key] = value !== undefined ? value : {});
	  })('versions', []).push({
	    version: _core.version,
	    mode: _library ? 'pure' : 'global',
	    copyright: '© 2018 Denis Pushkarev (zloirock.ru)'
	  });
  });
  
  var _wks = createCommonjsModule(function (module) {
	  var store = _shared('wks');
	  var Symbol = _global.Symbol;
	  var USE_SYMBOL = typeof Symbol == 'function';

	  var $exports = module.exports = function (name) {
	    return store[name] || (store[name] = USE_SYMBOL && Symbol[name] || (USE_SYMBOL ? Symbol : _uid)('Symbol.' + name));
	  };

	  $exports.store = store;
	});

	var _isObject = function _isObject(it) {
	  return typeof it === 'object' ? it !== null : typeof it === 'function';
	};

	var _anObject = function _anObject(it) {
	  if (!_isObject(it)) throw TypeError(it + ' is not an object!');
	  return it;
	};

	var _aFunction = function _aFunction(it) {
	  if (typeof it != 'function') throw TypeError(it + ' is not a function!');
	  return it;
	};

	var _ctx = function _ctx(fn, that, length) {
	  _aFunction(fn);
	  if (that === undefined) return fn;

	  switch (length) {
	    case 1:
	      return function (a) {
	        return fn.call(that, a);
	      };

	    case 2:
	      return function (a, b) {
	        return fn.call(that, a, b);
	      };

	    case 3:
	      return function (a, b, c) {
	        return fn.call(that, a, b, c);
	      };
	  }

	  return function ()
	  /* ...args */
	  {
	    return fn.apply(that, arguments);
	  };
	};

	var f = {}.propertyIsEnumerable;
	var _objectPie = {
	  f: f
	};

	var _propertyDesc = function _propertyDesc(bitmap, value) {
	  return {
	    enumerable: !(bitmap & 1),
	    configurable: !(bitmap & 2),
	    writable: !(bitmap & 4),
	    value: value
	  };
	};

	var _fails = function _fails(exec) {
	  try {
	    return !!exec();
	  } catch (e) {
	    return true;
	  }
	};

	var _descriptors = !_fails(function () {
	  return Object.defineProperty({}, 'a', {
	    get: function get() {
	      return 7;
	    }
	  }).a != 7;
	});

	var document = _global.document; // typeof document.createElement is 'object' in old IE

	var is = _isObject(document) && _isObject(document.createElement);

	var _domCreate = function _domCreate(it) {
	  return is ? document.createElement(it) : {};
	};

	var _ie8DomDefine = !_descriptors && !_fails(function () {
	  return Object.defineProperty(_domCreate('div'), 'a', {
	    get: function get() {
	      return 7;
	    }
	  }).a != 7;
	});

	// instead of the ES6 spec version, we didn't implement @@toPrimitive case
	// and the second argument - flag - preferred type is a string

	var _toPrimitive = function _toPrimitive(it, S) {
	  if (!_isObject(it)) return it;
	  var fn, val;
	  if (S && typeof (fn = it.toString) == 'function' && !_isObject(val = fn.call(it))) return val;
	  if (typeof (fn = it.valueOf) == 'function' && !_isObject(val = fn.call(it))) return val;
	  if (!S && typeof (fn = it.toString) == 'function' && !_isObject(val = fn.call(it))) return val;
	  throw TypeError("Can't convert object to primitive value");
	};

	var dP = Object.defineProperty;
	var f$1 = _descriptors ? Object.defineProperty : function defineProperty(O, P, Attributes) {
	  _anObject(O);
	  P = _toPrimitive(P, true);
	  _anObject(Attributes);
	  if (_ie8DomDefine) try {
	    return dP(O, P, Attributes);
	  } catch (e) {
	    /* empty */
	  }
	  if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');
	  if ('value' in Attributes) O[P] = Attributes.value;
	  return O;
	};
	var _objectDp = {
	  f: f$1
	};

	var _hide = _descriptors ? function (object, key, value) {
	  return _objectDp.f(object, key, _propertyDesc(1, value));
	} : function (object, key, value) {
	  object[key] = value;
	  return object;
	};

	var hasOwnProperty = {}.hasOwnProperty;

	var _has = function _has(it, key) {
	  return hasOwnProperty.call(it, key);
	};

	var _redefine = createCommonjsModule(function (module) {
	  var SRC = _uid('src');
	  var TO_STRING = 'toString';
	  var $toString = Function[TO_STRING];
	  var TPL = ('' + $toString).split(TO_STRING);

	  _core.inspectSource = function (it) {
	    return $toString.call(it);
	  };

	  (module.exports = function (O, key, val, safe) {
	    var isFunction = typeof val == 'function';
	    if (isFunction) _has(val, 'name') || _hide(val, 'name', key);
	    if (O[key] === val) return;
	    if (isFunction) _has(val, SRC) || _hide(val, SRC, O[key] ? '' + O[key] : TPL.join(String(key)));

	    if (O === _global) {
	      O[key] = val;
	    } else if (!safe) {
	      delete O[key];
	      _hide(O, key, val);
	    } else if (O[key]) {
	      O[key] = val;
	    } else {
	      _hide(O, key, val);
	    } // add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative

	  })(Function.prototype, TO_STRING, function toString() {
	    return typeof this == 'function' && this[SRC] || $toString.call(this);
	  });
	});

	// 7.2.1 RequireObjectCoercible(argument)
	var _defined = function _defined(it) {
	  if (it == undefined) throw TypeError("Can't call method on  " + it);
	  return it;
	};

	var _fixReWks = function _fixReWks(KEY, length, exec) {
	  var SYMBOL = _wks(KEY);
	  var fns = exec(_defined, SYMBOL, ''[KEY]);
	  var strfn = fns[0];
	  var rxfn = fns[1];

	  if (_fails(function () {
	    var O = {};

	    O[SYMBOL] = function () {
	      return 7;
	    };

	    return ''[KEY](O) != 7;
	  })) {
	    _redefine(String.prototype, KEY, strfn);
	    _hide(RegExp.prototype, SYMBOL, length == 2 // 21.2.5.8 RegExp.prototype[@@replace](string, replaceValue)
	    // 21.2.5.11 RegExp.prototype[@@split](string, limit)
	    ? function (string, arg) {
	      return rxfn.call(string, this, arg);
	    } // 21.2.5.6 RegExp.prototype[@@match](string)
	    // 21.2.5.9 RegExp.prototype[@@search](string)
	    : function (string) {
	      return rxfn.call(string, this);
	    });
	  }
	};

	_fixReWks('replace', 2, function (defined, REPLACE, $replace) {
	  // 21.1.3.14 String.prototype.replace(searchValue, replaceValue)
	  return [function replace(searchValue, replaceValue) {

	    var O = defined(this);
	    var fn = searchValue == undefined ? undefined : searchValue[REPLACE];
	    return fn !== undefined ? fn.call(searchValue, O, replaceValue) : $replace.call(String(O), searchValue, replaceValue);
	  }, $replace];
	});

	var toString = {}.toString;

	var _cof = function _cof(it) {
	  return toString.call(it).slice(8, -1);
	};

	var MATCH = _wks('match');

	var _isRegexp = function _isRegexp(it) {
	  var isRegExp;
	  return _isObject(it) && ((isRegExp = it[MATCH]) !== undefined ? !!isRegExp : _cof(it) == 'RegExp');
	};

	_fixReWks('split', 2, function (defined, SPLIT, $split) {

	  var isRegExp = _isRegexp;
	  var _split = $split;
	  var $push = [].push;
	  var $SPLIT = 'split';
	  var LENGTH = 'length';
	  var LAST_INDEX = 'lastIndex';

	  if ('abbc'[$SPLIT](/(b)*/)[1] == 'c' || 'test'[$SPLIT](/(?:)/, -1)[LENGTH] != 4 || 'ab'[$SPLIT](/(?:ab)*/)[LENGTH] != 2 || '.'[$SPLIT](/(.?)(.?)/)[LENGTH] != 4 || '.'[$SPLIT](/()()/)[LENGTH] > 1 || ''[$SPLIT](/.?/)[LENGTH]) {
	    var NPCG = /()??/.exec('')[1] === undefined; // nonparticipating capturing group
	    // based on es5-shim implementation, need to rework it

	    $split = function $split(separator, limit) {
	      var string = String(this);
	      if (separator === undefined && limit === 0) return []; // If `separator` is not a regex, use native split

	      if (!isRegExp(separator)) return _split.call(string, separator, limit);
	      var output = [];
	      var flags = (separator.ignoreCase ? 'i' : '') + (separator.multiline ? 'm' : '') + (separator.unicode ? 'u' : '') + (separator.sticky ? 'y' : '');
	      var lastLastIndex = 0;
	      var splitLimit = limit === undefined ? 4294967295 : limit >>> 0; // Make `global` and avoid `lastIndex` issues by working with a copy

	      var separatorCopy = new RegExp(separator.source, flags + 'g');
	      var separator2, match, lastIndex, lastLength, i; // Doesn't need flags gy, but they don't hurt

	      if (!NPCG) separator2 = new RegExp('^' + separatorCopy.source + '$(?!\\s)', flags);

	      while (match = separatorCopy.exec(string)) {
	        // `separatorCopy.lastIndex` is not reliable cross-browser
	        lastIndex = match.index + match[0][LENGTH];

	        if (lastIndex > lastLastIndex) {
	          output.push(string.slice(lastLastIndex, match.index)); // Fix browsers whose `exec` methods don't consistently return `undefined` for NPCG
	          // eslint-disable-next-line no-loop-func

	          if (!NPCG && match[LENGTH] > 1) match[0].replace(separator2, function () {
	            for (i = 1; i < arguments[LENGTH] - 2; i++) if (arguments[i] === undefined) match[i] = undefined;
	          });
	          if (match[LENGTH] > 1 && match.index < string[LENGTH]) $push.apply(output, match.slice(1));
	          lastLength = match[0][LENGTH];
	          lastLastIndex = lastIndex;
	          if (output[LENGTH] >= splitLimit) break;
	        }

	        if (separatorCopy[LAST_INDEX] === match.index) separatorCopy[LAST_INDEX]++; // Avoid an infinite loop
	      }

	      if (lastLastIndex === string[LENGTH]) {
	        if (lastLength || !separatorCopy.test('')) output.push('');
	      } else output.push(string.slice(lastLastIndex));

	      return output[LENGTH] > splitLimit ? output.slice(0, splitLimit) : output;
	    }; // Chakra, V8

	  } else if ('0'[$SPLIT](undefined, 0)[LENGTH]) {
	    $split = function $split(separator, limit) {
	      return separator === undefined && limit === 0 ? [] : _split.call(this, separator, limit);
	    };
	  } // 21.1.3.17 String.prototype.split(separator, limit)


	  return [function split(separator, limit) {
	    var O = defined(this);
	    var fn = separator == undefined ? undefined : separator[SPLIT];
	    return fn !== undefined ? fn.call(separator, O, limit) : $split.call(String(O), separator, limit);
	  }, $split];
	});

	// eslint-disable-next-line no-prototype-builtins

	var _iobject = Object('z').propertyIsEnumerable(0) ? Object : function (it) {
	  return _cof(it) == 'String' ? it.split('') : Object(it);
	};

	var _toIobject = function _toIobject(it) {
	  return _iobject(_defined(it));
	};

	var gOPD = Object.getOwnPropertyDescriptor;
	var f$2 = _descriptors ? gOPD : function getOwnPropertyDescriptor(O, P) {
	  O = _toIobject(O);
	  P = _toPrimitive(P, true);
	  if (_ie8DomDefine) try {
	    return gOPD(O, P);
	  } catch (e) {
	    /* empty */
	  }
	  if (_has(O, P)) return _propertyDesc(!_objectPie.f.call(O, P), O[P]);
	};
	var _objectGopd = {
	  f: f$2
	};

	/* eslint-disable no-proto */

	var check = function check(O, proto) {
	  _anObject(O);
	  if (!_isObject(proto) && proto !== null) throw TypeError(proto + ": can't set as prototype!");
	};

	var _setProto = {
	  set: Object.setPrototypeOf || ('__proto__' in {} ? // eslint-disable-line
	  function (test, buggy, set) {
	    try {
	      set = _ctx(Function.call, _objectGopd.f(Object.prototype, '__proto__').set, 2);
	      set(test, []);
	      buggy = !(test instanceof Array);
	    } catch (e) {
	      buggy = true;
	    }

	    return function setPrototypeOf(O, proto) {
	      check(O, proto);
	      if (buggy) O.__proto__ = proto;else set(O, proto);
	      return O;
	    };
	  }({}, false) : undefined),
	  check: check
	};

	var setPrototypeOf = _setProto.set;

	var _inheritIfRequired = function _inheritIfRequired(that, target, C) {
	  var S = target.constructor;
	  var P;

	  if (S !== C && typeof S == 'function' && (P = S.prototype) !== C.prototype && _isObject(P) && setPrototypeOf) {
	    setPrototypeOf(that, P);
	  }

	  return that;
	};

	// 7.1.4 ToInteger
	var ceil = Math.ceil;
	var floor = Math.floor;

	var _toInteger = function _toInteger(it) {
	  return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
	};

	var min = Math.min;

	var _toLength = function _toLength(it) {
	  return it > 0 ? min(_toInteger(it), 0x1fffffffffffff) : 0; // pow(2, 53) - 1 == 9007199254740991
	};

	var max = Math.max;
	var min$1 = Math.min;

	var _toAbsoluteIndex = function _toAbsoluteIndex(index, length) {
	  index = _toInteger(index);
	  return index < 0 ? max(index + length, 0) : min$1(index, length);
	};

	// true  -> Array#includes

	var _arrayIncludes = function _arrayIncludes(IS_INCLUDES) {
	  return function ($this, el, fromIndex) {
	    var O = _toIobject($this);
	    var length = _toLength(O.length);
	    var index = _toAbsoluteIndex(fromIndex, length);
	    var value; // Array#includes uses SameValueZero equality algorithm
	    // eslint-disable-next-line no-self-compare

	    if (IS_INCLUDES && el != el) while (length > index) {
	      value = O[index++]; // eslint-disable-next-line no-self-compare

	      if (value != value) return true; // Array#indexOf ignores holes, Array#includes - not
	    } else for (; length > index; index++) if (IS_INCLUDES || index in O) {
	      if (O[index] === el) return IS_INCLUDES || index || 0;
	    }
	    return !IS_INCLUDES && -1;
	  };
	};

	var shared = _shared('keys');

	var _sharedKey = function _sharedKey(key) {
	  return shared[key] || (shared[key] = _uid(key));
	};

	var arrayIndexOf = _arrayIncludes(false);
	var IE_PROTO = _sharedKey('IE_PROTO');

	var _objectKeysInternal = function _objectKeysInternal(object, names) {
	  var O = _toIobject(object);
	  var i = 0;
	  var result = [];
	  var key;

	  for (key in O) if (key != IE_PROTO) _has(O, key) && result.push(key); // Don't enum bug & hidden keys


	  while (names.length > i) if (_has(O, key = names[i++])) {
	    ~arrayIndexOf(result, key) || result.push(key);
	  }

	  return result;
	};

	// IE 8- don't enum bug keys
	var _enumBugKeys = 'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'.split(',');

	var hiddenKeys = _enumBugKeys.concat('length', 'prototype');

	var f$3 = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
	  return _objectKeysInternal(O, hiddenKeys);
	};

	var _objectGopn = {
	  f: f$3
	};

	var _flags = function _flags() {
	  var that = _anObject(this);
	  var result = '';
	  if (that.global) result += 'g';
	  if (that.ignoreCase) result += 'i';
	  if (that.multiline) result += 'm';
	  if (that.unicode) result += 'u';
	  if (that.sticky) result += 'y';
	  return result;
	};

	var SPECIES = _wks('species');

	var _setSpecies = function _setSpecies(KEY) {
	  var C = _global[KEY];
	  if (_descriptors && C && !C[SPECIES]) _objectDp.f(C, SPECIES, {
	    configurable: true,
	    get: function get() {
	      return this;
	    }
	  });
	};

	var dP$1 = _objectDp.f;
	var gOPN = _objectGopn.f;
	var $RegExp = _global.RegExp;
	var Base = $RegExp;
	var proto = $RegExp.prototype;
	var re1 = /a/g;
	var re2 = /a/g; // "new" creates a new object, old webkit buggy here

	var CORRECT_NEW = new $RegExp(re1) !== re1;

	if (_descriptors && (!CORRECT_NEW || _fails(function () {
	  re2[_wks('match')] = false; // RegExp constructor can alter flags and IsRegExp works correct with @@match

	  return $RegExp(re1) != re1 || $RegExp(re2) == re2 || $RegExp(re1, 'i') != '/a/i';
	}))) {
	  $RegExp = function RegExp(p, f) {
	    var tiRE = this instanceof $RegExp;
	    var piRE = _isRegexp(p);
	    var fiU = f === undefined;
	    return !tiRE && piRE && p.constructor === $RegExp && fiU ? p : _inheritIfRequired(CORRECT_NEW ? new Base(piRE && !fiU ? p.source : p, f) : Base((piRE = p instanceof $RegExp) ? p.source : p, piRE && fiU ? _flags.call(p) : f), tiRE ? this : proto, $RegExp);
	  };

	  var proxy = function proxy(key) {
	    key in $RegExp || dP$1($RegExp, key, {
	      configurable: true,
	      get: function get() {
	        return Base[key];
	      },
	      set: function set(it) {
	        Base[key] = it;
	      }
	    });
	  };

	  for (var keys = gOPN(Base), i = 0; keys.length > i;) proxy(keys[i++]);

	  proto.constructor = $RegExp;
	  $RegExp.prototype = proto;
	  _redefine(_global, 'RegExp', $RegExp);
	}

	_setSpecies('RegExp');

	if (_descriptors && /./g.flags != 'g') _objectDp.f(RegExp.prototype, 'flags', {
	  configurable: true,
	  get: _flags
	});

	var TO_STRING = 'toString';
	var $toString = /./[TO_STRING];

	var define = function define(fn) {
	  _redefine(RegExp.prototype, TO_STRING, fn, true);
	}; // 21.2.5.14 RegExp.prototype.toString()


	if (_fails(function () {
	  return $toString.call({
	    source: 'a',
	    flags: 'b'
	  }) != '/a/b';
	})) {
	  define(function toString() {
	    var R = _anObject(this);
	    return '/'.concat(R.source, '/', 'flags' in R ? R.flags : !_descriptors && R instanceof RegExp ? _flags.call(R) : undefined);
	  }); // FF44- RegExp#toString has a wrong name
	} else if ($toString.name != TO_STRING) {
	  define(function toString() {
	    return $toString.call(this);
	  });
	}

	// var id = 0;
	// var px = Math.random();

	// var _uid = function _uid(key) {
	//   return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
	// };

	// var _wks = createCommonjsModule(function (module) {
	//   var store = _shared('wks');
	//   var Symbol = _global.Symbol;
	//   var USE_SYMBOL = typeof Symbol == 'function';

	//   var $exports = module.exports = function (name) {
	//     return store[name] || (store[name] = USE_SYMBOL && Symbol[name] || (USE_SYMBOL ? Symbol : _uid)('Symbol.' + name));
	//   };

	//   $exports.store = store;
	// });

	var UNSCOPABLES = _wks('unscopables');
	var ArrayProto = Array.prototype;
	if (ArrayProto[UNSCOPABLES] == undefined) _hide(ArrayProto, UNSCOPABLES, {});

	var _addToUnscopables = function _addToUnscopables(key) {
	  ArrayProto[UNSCOPABLES][key] = true;
	};

	var _iterStep = function _iterStep(done, value) {
	  return {
	    value: value,
	    done: !!done
	  };
	};

	var _iterators = {};

	var PROTOTYPE = 'prototype';

	var $export = function $export(type, name, source) {
	  var IS_FORCED = type & $export.F;
	  var IS_GLOBAL = type & $export.G;
	  var IS_STATIC = type & $export.S;
	  var IS_PROTO = type & $export.P;
	  var IS_BIND = type & $export.B;
	  var target = IS_GLOBAL ? _global : IS_STATIC ? _global[name] || (_global[name] = {}) : (_global[name] || {})[PROTOTYPE];
	  var exports = IS_GLOBAL ? _core : _core[name] || (_core[name] = {});
	  var expProto = exports[PROTOTYPE] || (exports[PROTOTYPE] = {});
	  var key, own, out, exp;
	  if (IS_GLOBAL) source = name;

	  for (key in source) {
	    // contains in native
	    own = !IS_FORCED && target && target[key] !== undefined; // export native or passed

	    out = (own ? target : source)[key]; // bind timers to global for call from export context

	    exp = IS_BIND && own ? _ctx(out, _global) : IS_PROTO && typeof out == 'function' ? _ctx(Function.call, out) : out; // extend global

	    if (target) _redefine(target, key, out, type & $export.U); // export

	    if (exports[key] != out) _hide(exports, key, exp);
	    if (IS_PROTO && expProto[key] != out) expProto[key] = out;
	  }
	};

	_global.core = _core; // type bitmap

	$export.F = 1; // forced

	$export.G = 2; // global

	$export.S = 4; // static

	$export.P = 8; // proto

	$export.B = 16; // bind

	$export.W = 32; // wrap

	$export.U = 64; // safe

	$export.R = 128; // real proto method for `library`

	var _export = $export;

	var _objectKeys = Object.keys || function keys(O) {
	  return _objectKeysInternal(O, _enumBugKeys);
	};

	var _objectDps = _descriptors ? Object.defineProperties : function defineProperties(O, Properties) {
	  _anObject(O);
	  var keys = _objectKeys(Properties);
	  var length = keys.length;
	  var i = 0;
	  var P;

	  while (length > i) _objectDp.f(O, P = keys[i++], Properties[P]);

	  return O;
	};

	var document$1 = _global.document;

	var _html = document$1 && document$1.documentElement;

	var IE_PROTO$1 = _sharedKey('IE_PROTO');

	var Empty = function Empty() {
	  /* empty */
	};

	var PROTOTYPE$1 = 'prototype'; // Create object with fake `null` prototype: use iframe Object with cleared prototype

	var _createDict = function createDict() {
	  // Thrash, waste and sodomy: IE GC bug
	  var iframe = _domCreate('iframe');
	  var i = _enumBugKeys.length;
	  var lt = '<';
	  var gt = '>';
	  var iframeDocument;
	  iframe.style.display = 'none';
	  _html.appendChild(iframe);
	  iframe.src = 'javascript:'; // eslint-disable-line no-script-url
	  // createDict = iframe.contentWindow.Object;
	  // html.removeChild(iframe);

	  iframeDocument = iframe.contentWindow.document;
	  iframeDocument.open();
	  iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt);
	  iframeDocument.close();
	  _createDict = iframeDocument.F;

	  while (i--) delete _createDict[PROTOTYPE$1][_enumBugKeys[i]];

	  return _createDict();
	};

	var _objectCreate = Object.create || function create(O, Properties) {
	  var result;

	  if (O !== null) {
	    Empty[PROTOTYPE$1] = _anObject(O);
	    result = new Empty();
	    Empty[PROTOTYPE$1] = null; // add "__proto__" for Object.getPrototypeOf polyfill

	    result[IE_PROTO$1] = O;
	  } else result = _createDict();

	  return Properties === undefined ? result : _objectDps(result, Properties);
	};

	var def = _objectDp.f;
	var TAG = _wks('toStringTag');

	var _setToStringTag = function _setToStringTag(it, tag, stat) {
	  if (it && !_has(it = stat ? it : it.prototype, TAG)) def(it, TAG, {
	    configurable: true,
	    value: tag
	  });
	};

	var IteratorPrototype = {}; // 25.1.2.1.1 %IteratorPrototype%[@@iterator]()

	_hide(IteratorPrototype, _wks('iterator'), function () {
	  return this;
	});

	var _iterCreate = function _iterCreate(Constructor, NAME, next) {
	  Constructor.prototype = _objectCreate(IteratorPrototype, {
	    next: _propertyDesc(1, next)
	  });
	  _setToStringTag(Constructor, NAME + ' Iterator');
	};

	var _toObject = function _toObject(it) {
	  return Object(_defined(it));
	};

	var IE_PROTO$2 = _sharedKey('IE_PROTO');
	var ObjectProto = Object.prototype;

	var _objectGpo = Object.getPrototypeOf || function (O) {
	  O = _toObject(O);
	  if (_has(O, IE_PROTO$2)) return O[IE_PROTO$2];

	  if (typeof O.constructor == 'function' && O instanceof O.constructor) {
	    return O.constructor.prototype;
	  }

	  return O instanceof Object ? ObjectProto : null;
	};

	var ITERATOR = _wks('iterator');
	var BUGGY = !([].keys && 'next' in [].keys()); // Safari has buggy iterators w/o `next`

	var FF_ITERATOR = '@@iterator';
	var KEYS = 'keys';
	var VALUES = 'values';

	var returnThis = function returnThis() {
	  return this;
	};

	var _iterDefine = function _iterDefine(Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED) {
	  _iterCreate(Constructor, NAME, next);

	  var getMethod = function getMethod(kind) {
	    if (!BUGGY && kind in proto) return proto[kind];

	    switch (kind) {
	      case KEYS:
	        return function keys() {
	          return new Constructor(this, kind);
	        };

	      case VALUES:
	        return function values() {
	          return new Constructor(this, kind);
	        };
	    }

	    return function entries() {
	      return new Constructor(this, kind);
	    };
	  };

	  var TAG = NAME + ' Iterator';
	  var DEF_VALUES = DEFAULT == VALUES;
	  var VALUES_BUG = false;
	  var proto = Base.prototype;
	  var $native = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT];
	  var $default = $native || getMethod(DEFAULT);
	  var $entries = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined;
	  var $anyNative = NAME == 'Array' ? proto.entries || $native : $native;
	  var methods, key, IteratorPrototype; // Fix native

	  if ($anyNative) {
	    IteratorPrototype = _objectGpo($anyNative.call(new Base()));

	    if (IteratorPrototype !== Object.prototype && IteratorPrototype.next) {
	      // Set @@toStringTag to native iterators
	      _setToStringTag(IteratorPrototype, TAG, true); // fix for some old engines

	      if (!_library && typeof IteratorPrototype[ITERATOR] != 'function') _hide(IteratorPrototype, ITERATOR, returnThis);
	    }
	  } // fix Array#{values, @@iterator}.name in V8 / FF


	  if (DEF_VALUES && $native && $native.name !== VALUES) {
	    VALUES_BUG = true;

	    $default = function values() {
	      return $native.call(this);
	    };
	  } // Define iterator


	  if ((!_library || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])) {
	    _hide(proto, ITERATOR, $default);
	  } // Plug for library


	  _iterators[NAME] = $default;
	  _iterators[TAG] = returnThis;

	  if (DEFAULT) {
	    methods = {
	      values: DEF_VALUES ? $default : getMethod(VALUES),
	      keys: IS_SET ? $default : getMethod(KEYS),
	      entries: $entries
	    };
	    if (FORCED) for (key in methods) {
	      if (!(key in proto)) _redefine(proto, key, methods[key]);
	    } else _export(_export.P + _export.F * (BUGGY || VALUES_BUG), NAME, methods);
	  }

	  return methods;
	};

	// 22.1.3.13 Array.prototype.keys()
	// 22.1.3.29 Array.prototype.values()
	// 22.1.3.30 Array.prototype[@@iterator]()


	var es6_array_iterator = _iterDefine(Array, 'Array', function (iterated, kind) {
	  this._t = _toIobject(iterated); // target

	  this._i = 0; // next index

	  this._k = kind; // kind
	  // 22.1.5.2.1 %ArrayIteratorPrototype%.next()
	}, function () {
	  var O = this._t;
	  var kind = this._k;
	  var index = this._i++;

	  if (!O || index >= O.length) {
	    this._t = undefined;
	    return _iterStep(1);
	  }

	  if (kind == 'keys') return _iterStep(0, index);
	  if (kind == 'values') return _iterStep(0, O[index]);
	  return _iterStep(0, [index, O[index]]);
	}, 'values'); // argumentsList[@@iterator] is %ArrayProto_values% (9.4.4.6, 9.4.4.7)

	_iterators.Arguments = _iterators.Array;
	_addToUnscopables('keys');
	_addToUnscopables('values');
	_addToUnscopables('entries');

	var ITERATOR$1 = _wks('iterator');
	var TO_STRING_TAG = _wks('toStringTag');
	var ArrayValues = _iterators.Array;
	var DOMIterables = {
	  CSSRuleList: true,
	  // TODO: Not spec compliant, should be false.
	  CSSStyleDeclaration: false,
	  CSSValueList: false,
	  ClientRectList: false,
	  DOMRectList: false,
	  DOMStringList: false,
	  DOMTokenList: true,
	  DataTransferItemList: false,
	  FileList: false,
	  HTMLAllCollection: false,
	  HTMLCollection: false,
	  HTMLFormElement: false,
	  HTMLSelectElement: false,
	  MediaList: true,
	  // TODO: Not spec compliant, should be false.
	  MimeTypeArray: false,
	  NamedNodeMap: false,
	  NodeList: true,
	  PaintRequestList: false,
	  Plugin: false,
	  PluginArray: false,
	  SVGLengthList: false,
	  SVGNumberList: false,
	  SVGPathSegList: false,
	  SVGPointList: false,
	  SVGStringList: false,
	  SVGTransformList: false,
	  SourceBufferList: false,
	  StyleSheetList: true,
	  // TODO: Not spec compliant, should be false.
	  TextTrackCueList: false,
	  TextTrackList: false,
	  TouchList: false
	};

	for (var collections = _objectKeys(DOMIterables), i$1 = 0; i$1 < collections.length; i$1++) {
	  var NAME = collections[i$1];
	  var explicit = DOMIterables[NAME];
	  var Collection = _global[NAME];
	  var proto$1 = Collection && Collection.prototype;
	  var key;

	  if (proto$1) {
	    if (!proto$1[ITERATOR$1]) _hide(proto$1, ITERATOR$1, ArrayValues);
	    if (!proto$1[TO_STRING_TAG]) _hide(proto$1, TO_STRING_TAG, NAME);
	    _iterators[NAME] = ArrayValues;
	    if (explicit) for (key in es6_array_iterator) if (!proto$1[key]) _redefine(proto$1, key, es6_array_iterator[key], true);
	  }
	}

	var domain; // This constructor is used to store event handlers. Instantiating this is
	// faster than explicitly calling `Object.create(null)` to get a "clean" empty
	// object (tested with v8 v4.9).

	function EventHandlers() {}

	EventHandlers.prototype = Object.create(null);

	function EventEmitter() {
	  EventEmitter.init.call(this);
	}
	// require('events') === require('events').EventEmitter

	EventEmitter.EventEmitter = EventEmitter;
	EventEmitter.usingDomains = false;
	EventEmitter.prototype.domain = undefined;
	EventEmitter.prototype._events = undefined;
	EventEmitter.prototype._maxListeners = undefined; // By default EventEmitters will print a warning if more than 10 listeners are
	// added to it. This is a useful default which helps finding memory leaks.

	EventEmitter.defaultMaxListeners = 10;

	EventEmitter.init = function () {
	  this.domain = null;

	  if (EventEmitter.usingDomains) {
	    // if there is an active domain, then attach to it.
	    if (domain.active && !(this instanceof domain.Domain)) ;
	  }

	  if (!this._events || this._events === Object.getPrototypeOf(this)._events) {
	    this._events = new EventHandlers();
	    this._eventsCount = 0;
	  }

	  this._maxListeners = this._maxListeners || undefined;
	}; // Obviously not all Emitters should be limited to 10. This function allows
	// that to be increased. Set to zero for unlimited.


	EventEmitter.prototype.setMaxListeners = function setMaxListeners(n) {
	  if (typeof n !== 'number' || n < 0 || isNaN(n)) throw new TypeError('"n" argument must be a positive number');
	  this._maxListeners = n;
	  return this;
	};

	function $getMaxListeners(that) {
	  if (that._maxListeners === undefined) return EventEmitter.defaultMaxListeners;
	  return that._maxListeners;
	}

	EventEmitter.prototype.getMaxListeners = function getMaxListeners() {
	  return $getMaxListeners(this);
	}; // These standalone emit* functions are used to optimize calling of event
	// handlers for fast cases because emit() itself often has a variable number of
	// arguments and can be deoptimized because of that. These functions always have
	// the same number of arguments and thus do not get deoptimized, so the code
	// inside them can execute faster.


	function emitNone(handler, isFn, self) {
	  if (isFn) handler.call(self);else {
	    var len = handler.length;
	    var listeners = arrayClone(handler, len);

	    for (var i = 0; i < len; ++i) listeners[i].call(self);
	  }
	}

	function emitOne(handler, isFn, self, arg1) {
	  if (isFn) handler.call(self, arg1);else {
	    var len = handler.length;
	    var listeners = arrayClone(handler, len);

	    for (var i = 0; i < len; ++i) listeners[i].call(self, arg1);
	  }
	}

	function emitTwo(handler, isFn, self, arg1, arg2) {
	  if (isFn) handler.call(self, arg1, arg2);else {
	    var len = handler.length;
	    var listeners = arrayClone(handler, len);

	    for (var i = 0; i < len; ++i) listeners[i].call(self, arg1, arg2);
	  }
	}

	function emitThree(handler, isFn, self, arg1, arg2, arg3) {
	  if (isFn) handler.call(self, arg1, arg2, arg3);else {
	    var len = handler.length;
	    var listeners = arrayClone(handler, len);

	    for (var i = 0; i < len; ++i) listeners[i].call(self, arg1, arg2, arg3);
	  }
	}

	function emitMany(handler, isFn, self, args) {
	  if (isFn) handler.apply(self, args);else {
	    var len = handler.length;
	    var listeners = arrayClone(handler, len);

	    for (var i = 0; i < len; ++i) listeners[i].apply(self, args);
	  }
	}

	EventEmitter.prototype.emit = function emit(type) {
	  var er, handler, len, args, i, events, domain;
	  var doError = type === 'error';
	  events = this._events;
	  if (events) doError = doError && events.error == null;else if (!doError) return false;
	  domain = this.domain; // If there is no 'error' event listener then throw.

	  if (doError) {
	    er = arguments[1];

	    if (domain) {
	      if (!er) er = new Error('Uncaught, unspecified "error" event');
	      er.domainEmitter = this;
	      er.domain = domain;
	      er.domainThrown = false;
	      domain.emit('error', er);
	    } else if (er instanceof Error) {
	      throw er; // Unhandled 'error' event
	    } else {
	      // At least give some kind of context to the user
	      var err = new Error('Uncaught, unspecified "error" event. (' + er + ')');
	      err.context = er;
	      throw err;
	    }

	    return false;
	  }

	  handler = events[type];
	  if (!handler) return false;
	  var isFn = typeof handler === 'function';
	  len = arguments.length;

	  switch (len) {
	    // fast cases
	    case 1:
	      emitNone(handler, isFn, this);
	      break;

	    case 2:
	      emitOne(handler, isFn, this, arguments[1]);
	      break;

	    case 3:
	      emitTwo(handler, isFn, this, arguments[1], arguments[2]);
	      break;

	    case 4:
	      emitThree(handler, isFn, this, arguments[1], arguments[2], arguments[3]);
	      break;
	    // slower

	    default:
	      args = new Array(len - 1);

	      for (i = 1; i < len; i++) args[i - 1] = arguments[i];

	      emitMany(handler, isFn, this, args);
	  }
	  return true;
	};

	function _addListener(target, type, listener, prepend) {
	  var m;
	  var events;
	  var existing;
	  if (typeof listener !== 'function') throw new TypeError('"listener" argument must be a function');
	  events = target._events;

	  if (!events) {
	    events = target._events = new EventHandlers();
	    target._eventsCount = 0;
	  } else {
	    // To avoid recursion in the case that type === "newListener"! Before
	    // adding it to the listeners, first emit "newListener".
	    if (events.newListener) {
	      target.emit('newListener', type, listener.listener ? listener.listener : listener); // Re-assign `events` because a newListener handler could have caused the
	      // this._events to be assigned to a new object

	      events = target._events;
	    }

	    existing = events[type];
	  }

	  if (!existing) {
	    // Optimize the case of one listener. Don't need the extra array object.
	    existing = events[type] = listener;
	    ++target._eventsCount;
	  } else {
	    if (typeof existing === 'function') {
	      // Adding the second element, need to change to array.
	      existing = events[type] = prepend ? [listener, existing] : [existing, listener];
	    } else {
	      // If we've already got an array, just append.
	      if (prepend) {
	        existing.unshift(listener);
	      } else {
	        existing.push(listener);
	      }
	    } // Check for listener leak


	    if (!existing.warned) {
	      m = $getMaxListeners(target);

	      if (m && m > 0 && existing.length > m) {
	        existing.warned = true;
	        var w = new Error('Possible EventEmitter memory leak detected. ' + existing.length + ' ' + type + ' listeners added. ' + 'Use emitter.setMaxListeners() to increase limit');
	        w.name = 'MaxListenersExceededWarning';
	        w.emitter = target;
	        w.type = type;
	        w.count = existing.length;
	        emitWarning(w);
	      }
	    }
	  }

	  return target;
	}

	function emitWarning(e) {
	  typeof console.warn === 'function' ? console.warn(e) : console.log(e);
	}

	EventEmitter.prototype.addListener = function addListener(type, listener) {
	  return _addListener(this, type, listener, false);
	};

	EventEmitter.prototype.on = EventEmitter.prototype.addListener;

	EventEmitter.prototype.prependListener = function prependListener(type, listener) {
	  return _addListener(this, type, listener, true);
	};

	function _onceWrap(target, type, listener) {
	  var fired = false;

	  function g() {
	    target.removeListener(type, g);

	    if (!fired) {
	      fired = true;
	      listener.apply(target, arguments);
	    }
	  }

	  g.listener = listener;
	  return g;
	}

	EventEmitter.prototype.once = function once(type, listener) {
	  if (typeof listener !== 'function') throw new TypeError('"listener" argument must be a function');
	  this.on(type, _onceWrap(this, type, listener));
	  return this;
	};

	EventEmitter.prototype.prependOnceListener = function prependOnceListener(type, listener) {
	  if (typeof listener !== 'function') throw new TypeError('"listener" argument must be a function');
	  this.prependListener(type, _onceWrap(this, type, listener));
	  return this;
	}; // emits a 'removeListener' event iff the listener was removed


	EventEmitter.prototype.removeListener = function removeListener(type, listener) {
	  var list, events, position, i, originalListener;
	  if (typeof listener !== 'function') throw new TypeError('"listener" argument must be a function');
	  events = this._events;
	  if (!events) return this;
	  list = events[type];
	  if (!list) return this;

	  if (list === listener || list.listener && list.listener === listener) {
	    if (--this._eventsCount === 0) this._events = new EventHandlers();else {
	      delete events[type];
	      if (events.removeListener) this.emit('removeListener', type, list.listener || listener);
	    }
	  } else if (typeof list !== 'function') {
	    position = -1;

	    for (i = list.length; i-- > 0;) {
	      if (list[i] === listener || list[i].listener && list[i].listener === listener) {
	        originalListener = list[i].listener;
	        position = i;
	        break;
	      }
	    }

	    if (position < 0) return this;

	    if (list.length === 1) {
	      list[0] = undefined;

	      if (--this._eventsCount === 0) {
	        this._events = new EventHandlers();
	        return this;
	      } else {
	        delete events[type];
	      }
	    } else {
	      spliceOne(list, position);
	    }

	    if (events.removeListener) this.emit('removeListener', type, originalListener || listener);
	  }

	  return this;
	};

	EventEmitter.prototype.removeAllListeners = function removeAllListeners(type) {
	  var listeners, events;
	  events = this._events;
	  if (!events) return this; // not listening for removeListener, no need to emit

	  if (!events.removeListener) {
	    if (arguments.length === 0) {
	      this._events = new EventHandlers();
	      this._eventsCount = 0;
	    } else if (events[type]) {
	      if (--this._eventsCount === 0) this._events = new EventHandlers();else delete events[type];
	    }

	    return this;
	  } // emit removeListener for all listeners on all events


	  if (arguments.length === 0) {
	    var keys = Object.keys(events);

	    for (var i = 0, key; i < keys.length; ++i) {
	      key = keys[i];
	      if (key === 'removeListener') continue;
	      this.removeAllListeners(key);
	    }

	    this.removeAllListeners('removeListener');
	    this._events = new EventHandlers();
	    this._eventsCount = 0;
	    return this;
	  }

	  listeners = events[type];

	  if (typeof listeners === 'function') {
	    this.removeListener(type, listeners);
	  } else if (listeners) {
	    // LIFO order
	    do {
	      this.removeListener(type, listeners[listeners.length - 1]);
	    } while (listeners[0]);
	  }

	  return this;
	};

	EventEmitter.prototype.listeners = function listeners(type) {
	  var evlistener;
	  var ret;
	  var events = this._events;
	  if (!events) ret = [];else {
	    evlistener = events[type];
	    if (!evlistener) ret = [];else if (typeof evlistener === 'function') ret = [evlistener.listener || evlistener];else ret = unwrapListeners(evlistener);
	  }
	  return ret;
	};

	EventEmitter.listenerCount = function (emitter, type) {
	  if (typeof emitter.listenerCount === 'function') {
	    return emitter.listenerCount(type);
	  } else {
	    return listenerCount.call(emitter, type);
	  }
	};

	EventEmitter.prototype.listenerCount = listenerCount;

	function listenerCount(type) {
	  var events = this._events;

	  if (events) {
	    var evlistener = events[type];

	    if (typeof evlistener === 'function') {
	      return 1;
	    } else if (evlistener) {
	      return evlistener.length;
	    }
	  }

	  return 0;
	}

	EventEmitter.prototype.eventNames = function eventNames() {
	  return this._eventsCount > 0 ? Reflect.ownKeys(this._events) : [];
	}; // About 1.5x faster than the two-arg version of Array#splice().


	function spliceOne(list, index) {
	  for (var i = index, k = i + 1, n = list.length; k < n; i += 1, k += 1) list[i] = list[k];

	  list.pop();
	}

	function arrayClone(arr, i) {
	  var copy = new Array(i);

	  while (i--) copy[i] = arr[i];

	  return copy;
	}

	function unwrapListeners(arr) {
	  var ret = new Array(arr.length);

	  for (var i = 0; i < ret.length; ++i) {
	    ret[i] = arr[i].listener || arr[i];
	  }

	  return ret;
	}

	// import debounce from 'lodash/debounce';
	// import moment from 'moment';

	function helloworld() {
	  console.log(React__default);
	  console.log(EventEmitter); // console.log(Component);
	  // console.log(debounce);
	  // console.log(_.throttle);
	  // console.log(moment);

	  console.log('helloworld');
	}

	function helloworld$1() {
	  console.log('helloworld');
	}

	class Apple {
	  constructor({
	    model
	  }) {
	    this.className = 'Apple';
	    this.model = model;
	  }

	  getModel() {
	    return this.model;
	  }

	}

	class Person {
	  constructor({
	    name,
	    age,
	    sex
	  }) {
	    this.className = 'Person';
	    this.name = name;
	    this.age = age;
	    this.sex = sex;
	  }

	  getName() {
	    return this.name;
	  }

	}

	exports.helloworld = helloworld;
	exports.Person = Person;
	exports.Apple = Apple;
	exports.h = helloworld$1;

	Object.defineProperty(exports, '__esModule', { value: true });

})));