/*!
 * EventEmitter v4.2.7 - git.io/ee
 * Oliver Caldwell
 * MIT license
 * @preserve
 */
(function(){"use strict";function t(){}function r(t,n){for(var e=t.length;e--;)if(t[e].listener===n)return e;return-1}function n(e){return function(){return this[e].apply(this,arguments)}}var e=t.prototype,i=this,s=i.EventEmitter;e.getListeners=function(n){var r,e,t=this._getEvents();if(n instanceof RegExp){r={};for(e in t)t.hasOwnProperty(e)&&n.test(e)&&(r[e]=t[e])}else r=t[n]||(t[n]=[]);return r},e.flattenListeners=function(t){var e,n=[];for(e=0;e<t.length;e+=1)n.push(t[e].listener);return n},e.getListenersAsObject=function(n){var e,t=this.getListeners(n);return t instanceof Array&&(e={},e[n]=t),e||t},e.addListener=function(i,e){var t,n=this.getListenersAsObject(i),s="object"==typeof e;for(t in n)n.hasOwnProperty(t)&&-1===r(n[t],e)&&n[t].push(s?e:{listener:e,once:!1});return this},e.on=n("addListener"),e.addOnceListener=function(e,t){return this.addListener(e,{listener:t,once:!0})},e.once=n("addOnceListener"),e.defineEvent=function(e){return this.getListeners(e),this},e.defineEvents=function(t){for(var e=0;e<t.length;e+=1)this.defineEvent(t[e]);return this},e.removeListener=function(i,s){var n,e,t=this.getListenersAsObject(i);for(e in t)t.hasOwnProperty(e)&&(n=r(t[e],s),-1!==n&&t[e].splice(n,1));return this},e.off=n("removeListener"),e.addListeners=function(e,t){return this.manipulateListeners(!1,e,t)},e.removeListeners=function(e,t){return this.manipulateListeners(!0,e,t)},e.manipulateListeners=function(r,t,i){var e,n,s=r?this.removeListener:this.addListener,o=r?this.removeListeners:this.addListeners;if("object"!=typeof t||t instanceof RegExp)for(e=i.length;e--;)s.call(this,t,i[e]);else for(e in t)t.hasOwnProperty(e)&&(n=t[e])&&("function"==typeof n?s.call(this,e,n):o.call(this,e,n));return this},e.removeEvent=function(e){var t,r=typeof e,n=this._getEvents();if("string"===r)delete n[e];else if(e instanceof RegExp)for(t in n)n.hasOwnProperty(t)&&e.test(t)&&delete n[t];else delete this._events;return this},e.removeAllListeners=n("removeEvent"),e.emitEvent=function(r,o){var e,i,t,s,n=this.getListenersAsObject(r);for(t in n)if(n.hasOwnProperty(t))for(i=n[t].length;i--;)e=n[t][i],e.once===!0&&this.removeListener(r,e.listener),s=e.listener.apply(this,o||[]),s===this._getOnceReturnValue()&&this.removeListener(r,e.listener);return this},e.trigger=n("emitEvent"),e.emit=function(e){var t=Array.prototype.slice.call(arguments,1);return this.emitEvent(e,t)},e.setOnceReturnValue=function(e){return this._onceReturnValue=e,this},e._getOnceReturnValue=function(){return this.hasOwnProperty("_onceReturnValue")?this._onceReturnValue:!0},e._getEvents=function(){return this._events||(this._events={})},t.noConflict=function(){return i.EventEmitter=s,t},"function"==typeof define&&define.amd?define(function(){return t}):"object"==typeof module&&module.exports?module.exports=t:this.EventEmitter=t}).call(globalThis);
export default EventEmitter;