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pov

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lightweight multivariate a/b testing

jdanlewis/pov

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/*! * ============================================================= * Ender: open module JavaScript framework (https://ender.no.de) * Build: ender build pov * ============================================================= */ /*! * Ender: open module JavaScript framework (client-lib) * copyright Dustin Diaz & Jacob Thornton 2011-2012 (@ded @fat) * http://ender.jit.su * License MIT */ (function(context){function require(identifier){var module=modules["$"+identifier]||window[identifier];if(!module)throw new Error("Ender Error: Requested module '"+identifier+"' has not been defined.");return module}function provide(name,what){return modules["$"+name]=what}function aug(o,o2){for(var k in o2)k!="noConflict"&&k!="_VERSION"&&(o[k]=o2[k]);return o}function Ender(s,r){var elements,i;this.selector=s;if(typeof s=="undefined"){elements=[];this.selector=""}else typeof s=="string"||s.nodeName||s.length&&"item"in 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abort scroll ",w3cNativeEvents="show input invalid touchstart touchmove touchend touchcancel gesturestart gesturechange gestureend textinputreadystatechange pageshow pagehide popstate hashchange offline online afterprint beforeprint dragstart dragenter dragover dragleave drag drop dragend loadstart progress suspend emptied stalled loadmetadata loadeddata canplay canplaythrough playing waiting seeking seeked ended durationchange timeupdate play pause ratechange volumechange cuechange checking noupdate downloading cached updateready obsolete ",nativeEvents=function(hash,events,i){for(i=0;i<events.length;i++)events[i]&&(hash[events[i]]=1);return hash}({},str2arr(standardNativeEvents+(W3C_MODEL?w3cNativeEvents:""))),customEvents=function(){var isAncestor="compareDocumentPosition"in root?function(element,container){return container.compareDocumentPosition&&(container.compareDocumentPosition(element)&16)===16}:"contains"in 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pageX pageY screenX screenY toElement")),mouseWheelProps=mouseProps.concat(str2arr("wheelDelta wheelDeltaX wheelDeltaY wheelDeltaZ axis")),keyProps=commonProps.concat(str2arr("char charCode key keyCode keyIdentifier keyLocation location")),textProps=commonProps.concat(str2arr("data")),touchProps=commonProps.concat(str2arr("touches targetTouches changedTouches scale rotation")),messageProps=commonProps.concat(str2arr("data origin source")),stateProps=commonProps.concat(str2arr("state")),overOutRegex=/over|out/,typeFixers=[{reg:/key/i,fix:function(event,newEvent){newEvent.keyCode=event.keyCode||event.which;return keyProps}},{reg:/click|mouse(?!(.*wheel|scroll))|menu|drag|drop/i,fix:function(event,newEvent,type){newEvent.rightClick=event.which===3||event.button===2;newEvent.pos={x:0,y:0};if(event.pageX||event.pageY){newEvent.clientX=event.pageX;newEvent.clientY=event.pageY}else if(event.clientX||event.clientY){newEvent.clientX=event.clientX+doc.body.scrollLeft+root.scrollLeft;newEvent.clientY=event.clientY+doc.body.scrollTop+root.scrollTop}overOutRegex.test(type)&&(newEvent.relatedTarget=event.relatedTarget||event[(type=="mouseover"?"from":"to")+"Element"]);return mouseProps}},{reg:/mouse.*(wheel|scroll)/i,fix:function(){return mouseWheelProps}},{reg:/^text/i,fix:function(){return textProps}},{reg:/^touch|^gesture/i,fix:function(){return touchProps}},{reg:/^message$/i,fix:function(){return messageProps}},{reg:/^popstate$/i,fix:function(){return stateProps}},{reg:/.*/,fix:function(){return commonProps}}],typeFixerMap={},Event=function(event,element,isNative){if(!arguments.length)return;event=event||((element.ownerDocument||element.document||element).parentWindow||win).event;this.originalEvent=event;this.isNative=isNative;this.isBean=!0;if(!event)return;var type=event.type,target=event.target||event.srcElement,i,l,p,props,fixer;this.target=target&&target.nodeType===3?target.parentNode:target;if(isNative){fixer=typeFixerMap[type];if(!fixer)for(i=0,l=typeFixers.length;i<l;i++)if(typeFixers[i].reg.test(type)){typeFixerMap[type]=fixer=typeFixers[i].fix;break}props=fixer(event,this,type);for(i=props.length;i--;)!((p=props[i])in this)&&p in event&&(this[p]=event[p])}};Event.prototype.preventDefault=function(){this.originalEvent.preventDefault?this.originalEvent.preventDefault():this.originalEvent.returnValue=!1};Event.prototype.stopPropagation=function(){this.originalEvent.stopPropagation?this.originalEvent.stopPropagation():this.originalEvent.cancelBubble=!0};Event.prototype.stop=function(){this.preventDefault();this.stopPropagation();this.stopped=!0};Event.prototype.stopImmediatePropagation=function(){this.originalEvent.stopImmediatePropagation&&this.originalEvent.stopImmediatePropagation();this.isImmediatePropagationStopped=function(){return!0}};Event.prototype.isImmediatePropagationStopped=function(){return this.originalEvent.isImmediatePropagationStopped&&this.originalEvent.isImmediatePropagationStopped()};Event.prototype.clone=function(currentTarget){var ne=new Event(this,this.element,this.isNative);ne.currentTarget=currentTarget;return ne};return Event}(),targetElement=function(element,isNative){return!W3C_MODEL&&!isNative&&(element===doc||element===win)?root:element},RegEntry=function(){var wrappedHandler=function(element,fn,condition,args){var call=function(event,eargs){return fn.apply(element,args?slice.call(eargs,event?0:1).concat(args):eargs)},findTarget=function(event,eventElement){return fn.__beanDel?fn.__beanDel.ft(event.target,element):eventElement},handler=condition?function(event){var target=findTarget(event,this);if(condition.apply(target,arguments)){event&&(event.currentTarget=target);return call(event,arguments)}}:function(event){fn.__beanDel&&(event=event.clone(findTarget(event)));return call(event,arguments)};handler.__beanDel=fn.__beanDel;return handler},RegEntry=function(element,type,handler,original,namespaces,args,root){var customType=customEvents[type],isNative;type=="unload"&&(handler=once(removeListener,element,type,handler,original));if(customType){customType.condition&&(handler=wrappedHandler(element,handler,customType.condition,args));type=customType.base||type}this.isNative=isNative=nativeEvents[type]&&!!element[eventSupport];this.customType=!W3C_MODEL&&!isNative&&type;this.element=element;this.type=type;this.original=original;this.namespaces=namespaces;this.eventType=W3C_MODEL||isNative?type:"propertychange";this.target=targetElement(element,isNative);this[eventSupport]=!!this.target[eventSupport];this.root=root;this.handler=wrappedHandler(element,handler,null,args)};RegEntry.prototype.inNamespaces=function(checkNamespaces){var i,j,c=0;if(!checkNamespaces)return!0;if(!this.namespaces)return!1;for(i=checkNamespaces.length;i--;)for(j=this.namespaces.length;j--;)checkNamespaces[i]==this.namespaces[j]&&c++;return checkNamespaces.length===c};RegEntry.prototype.matches=function(checkElement,checkOriginal,checkHandler){return this.element===checkElement&&(!checkOriginal||this.original===checkOriginal)&&(!checkHandler||this.handler===checkHandler)};return RegEntry}(),registry=function(){var map={},forAll=function(element,type,original,handler,root,fn){var pfx=root?"r":"$";if(!type||type=="*")for(var t in map)t.charAt(0)==pfx&&forAll(element,t.substr(1),original,handler,root,fn);else{var i=0,l,list=map[pfx+type],all=element=="*";if(!list)return;for(l=list.length;i<l;i++)if((all||list[i].matches(element,original,handler))&&!fn(list[i],list,i,type))return}},has=function(element,type,original,root){var i,list=map[(root?"r":"$")+type];if(list)for(i=list.length;i--;)if(!list[i].root&&list[i].matches(element,original,null))return!0;return!1},get=function(element,type,original,root){var entries=[];forAll(element,type,original,null,root,function(entry){return entries.push(entry)});return entries},put=function(entry){var has=!entry.root&&!this.has(entry.element,entry.type,null,!1),key=(entry.root?"r":"$")+entry.type;(map[key]||(map[key]=[])).push(entry);return has},del=function(entry){forAll(entry.element,entry.type,null,entry.handler,entry.root,function(entry,list,i){list.splice(i,1);entry.removed=!0;list.length===0&&delete map[(entry.root?"r":"$")+entry.type];return!1})},entries=function(){var t,entries=[];for(t in map)t.charAt(0)=="$"&&(entries=entries.concat(map[t]));return entries};return{has:has,get:get,put:put,del:del,entries:entries}}(),selectorEngine,setSelectorEngine=function(e){arguments.length?selectorEngine=e:selectorEngine=doc.querySelectorAll?function(s,r){return r.querySelectorAll(s)}:function(){throw new Error("Bean: No selector engine installed")}},rootListener=function(event,type){if(!W3C_MODEL&&type&&event&&event.propertyName!="_on"+type)return;var listeners=registry.get(this,type||event.type,null,!1),l=listeners.length,i=0;event=new Event(event,this,!0);type&&(event.type=type);for(;i<l&&!event.isImmediatePropagationStopped();i++)listeners[i].removed||listeners[i].handler.call(this,event)},listener=W3C_MODEL?function(element,type,add){element[add?addEvent:removeEvent](type,rootListener,!1)}:function(element,type,add,custom){var entry;if(add){registry.put(entry=new RegEntry(element,custom||type,function(event){rootListener.call(element,event,custom)},rootListener,null,null,!0));custom&&element["_on"+custom]==null&&(element["_on"+custom]=0);entry.target.attachEvent("on"+entry.eventType,entry.handler)}else{entry=registry.get(element,custom||type,rootListener,!0)[0];if(entry){entry.target.detachEvent("on"+entry.eventType,entry.handler);registry.del(entry)}}},once=function(rm,element,type,fn,originalFn){return function(){fn.apply(this,arguments);rm(element,type,originalFn)}},removeListener=function(element,orgType,handler,namespaces){var type=orgType&&orgType.replace(nameRegex,""),handlers=registry.get(element,type,null,!1),removed={},i,l;for(i=0,l=handlers.length;i<l;i++)if((!handler||handlers[i].original===handler)&&handlers[i].inNamespaces(namespaces)){registry.del(handlers[i]);!removed[handlers[i].eventType]&&handlers[i][eventSupport]&&(removed[handlers[i].eventType]={t:handlers[i].eventType,c:handlers[i].type})}for(i in removed)registry.has(element,removed[i].t,null,!1)||listener(element,removed[i].t,!1,removed[i].c)},delegate=function(selector,fn){var findTarget=function(target,root){var i,array=isString(selector)?selectorEngine(selector,root):selector;for(;target&&target!==root;target=target.parentNode)for(i=array.length;i--;)if(array[i]===target)return target},handler=function(e){var match=findTarget(e.target,this);match&&fn.apply(match,arguments)};handler.__beanDel={ft:findTarget,selector:selector};return handler},fireListener=W3C_MODEL?function(isNative,type,element){var evt=doc.createEvent(isNative?"HTMLEvents":"UIEvents");evt[isNative?"initEvent":"initUIEvent"](type,!0,!0,win,1);element.dispatchEvent(evt)}:function(isNative,type,element){element=targetElement(element,isNative);isNative?element.fireEvent("on"+type,doc.createEventObject()):element["_on"+type]++},off=function(element,typeSpec,fn){var isTypeStr=isString(typeSpec),k,type,namespaces,i;if(isTypeStr&&typeSpec.indexOf(" ")>0){typeSpec=str2arr(typeSpec);for(i=typeSpec.length;i--;)off(element,typeSpec[i],fn);return element}type=isTypeStr&&typeSpec.replace(nameRegex,"");type&&customEvents[type]&&(type=customEvents[type].type);if(!typeSpec||isTypeStr){if(namespaces=isTypeStr&&typeSpec.replace(namespaceRegex,""))namespaces=str2arr(namespaces,".");removeListener(element,type,fn,namespaces)}else if(isFunction(typeSpec))removeListener(element,null,typeSpec);else for(k in typeSpec)typeSpec.hasOwnProperty(k)&&off(element,k,typeSpec[k]);return element},on=function(element,events,selector,fn){var originalFn,type,types,i,args,entry,first;if(selector===undefined&&typeof events=="object"){for(type in events)events.hasOwnProperty(type)&&on.call(this,element,type,events[type]);return}if(!isFunction(selector)){originalFn=fn;args=slice.call(arguments,4);fn=delegate(selector,originalFn,selectorEngine)}else{args=slice.call(arguments,3);fn=originalFn=selector}types=str2arr(events);this===ONE&&(fn=once(off,element,events,fn,originalFn));for(i=types.length;i--;){first=registry.put(entry=new RegEntry(element,types[i].replace(nameRegex,""),fn,originalFn,str2arr(types[i].replace(namespaceRegex,""),"."),args,!1));entry[eventSupport]&&first&&listener(element,entry.eventType,!0,entry.customType)}return element},add=function(element,events,fn,delfn){return on.apply(null,isString(fn)?[element,fn,events,delfn].concat(arguments.length>3?slice.call(arguments,5):[]):slice.call(arguments))},one=function(){return on.apply(ONE,arguments)},fire=function(element,type,args){var types=str2arr(type),i,j,l,names,handlers;for(i=types.length;i--;){type=types[i].replace(nameRegex,"");if(names=types[i].replace(namespaceRegex,""))names=str2arr(names,".");if(!names&&!args&&element[eventSupport])fireListener(nativeEvents[type],type,element);else{handlers=registry.get(element,type,null,!1);args=[!1].concat(args);for(j=0,l=handlers.length;j<l;j++)handlers[j].inNamespaces(names)&&handlers[j].handler.apply(element,args)}}return element},clone=function(element,from,type){var handlers=registry.get(from,type,null,!1),l=handlers.length,i=0,args,beanDel;for(;i<l;i++)if(handlers[i].original){args=[element,handlers[i].type];(beanDel=handlers[i].handler.__beanDel)&&args.push(beanDel.selector);args.push(handlers[i].original);on.apply(null,args)}return element},bean={on:on,add:add,one:one,off:off,remove:off,clone:clone,fire:fire,setSelectorEngine:setSelectorEngine,noConflict:function(){context[name]=old;return this}};if(win.attachEvent){var cleanup=function(){var i,entries=registry.entries();for(i in entries)entries[i].type&&entries[i].type!=="unload"&&off(entries[i].element,entries[i].type);win.detachEvent("onunload",cleanup);win.CollectGarbage&&win.CollectGarbage()};win.attachEvent("onunload",cleanup)}setSelectorEngine();return bean});provide("bean",module.exports);!function($){var b=require("bean"),integrate=function(method,type,method2){var _args=type?[type]:[];return function(){for(var i=0,l=this.length;i<l;i++){!arguments.length&&method=="on"&&type&&(method="fire");b[method].apply(this,[this[i]].concat(_args,Array.prototype.slice.call(arguments,0)))}return this}},add=integrate("add"),on=integrate("on"),one=integrate("one"),off=integrate("off"),fire=integrate("fire"),clone=integrate("clone"),hover=function(enter,leave,i){for(i=this.length;i--;){b.on.call(this,this[i],"mouseenter",enter);b.on.call(this,this[i],"mouseleave",leave)}return this},methods={on:on,addListener:on,bind:on,listen:on,delegate:add,one:one,off:off,unbind:off,unlisten:off,removeListener:off,undelegate:off,emit:fire,trigger:fire,cloneEvents:clone,hover:hover},shortcuts="blur change click dblclick error focus focusin focusout keydown keypress keyup load mousedown mouseenter mouseleave mouseout mouseover mouseup mousemove resize scroll select submit unload".split(" ");for(var i=shortcuts.length;i--;)methods[shortcuts[i]]=integrate("on",shortcuts[i]);b.setSelectorEngine($);$.ender(methods,!0)}(ender)})();(function(){var module={exports:{}},exports=module.exports; /*! * domready (c) Dustin Diaz 2012 - License MIT */ ;!function(name,definition){typeof module!="undefined"?module.exports=definition():typeof define=="function"&&typeof define.amd=="object"?define(definition):this[name]=definition()}("domready",function(ready){function flush(f){loaded=1;while(f=fns.shift())f()}var fns=[],fn,f=!1,doc=document,testEl=doc.documentElement,hack=testEl.doScroll,domContentLoaded="DOMContentLoaded",addEventListener="addEventListener",onreadystatechange="onreadystatechange",readyState="readyState",loaded=/^loade|c/.test(doc[readyState]);doc[addEventListener]&&doc[addEventListener](domContentLoaded,fn=function(){doc.removeEventListener(domContentLoaded,fn,f);flush()},f);hack&&doc.attachEvent(onreadystatechange,fn=function(){if(/^c/.test(doc[readyState])){doc.detachEvent(onreadystatechange,fn);flush()}});return ready=hack?function(fn){self!=top?loaded?fn():fns.push(fn):function(){try{testEl.doScroll("left")}catch(e){return setTimeout(function(){ready(fn)},50)}fn()}()}:function(fn){loaded?fn():fns.push(fn)}});provide("domready",module.exports);!function($){var ready=require("domready");$.ender({domReady:ready});$.ender({ready:function(f){ready(f);return this}},!0)}(ender)})();(function(){var module={exports:{}},exports=module.exports; /*! * Bonzo: DOM Utility (c) Dustin Diaz 2012 * https://github.com/ded/bonzo * License MIT */ (function(name,definition,context){typeof module!="undefined"&&module.exports?module.exports=definition():typeof context["define"]=="function"&&context.define.amd?define(name,definition):context[name]=definition()})("bonzo",function(){function classReg(c){return new RegExp("(^|\\s+)"+c+"(\\s+|$)")}function each(ar,fn,opt_scope,opt_rev){var ind,i=0,l=ar.length;for(;i<l;i++){ind=opt_rev?ar.length-i-1:i;fn.call(opt_scope||ar[ind],ar[ind],ind,ar)}return ar}function deepEach(ar,fn,opt_scope){for(var i=0,l=ar.length;i<l;i++)if(isNode(ar[i])){deepEach(ar[i].childNodes,fn,opt_scope);fn.call(opt_scope||ar[i],ar[i],i,ar)}return ar}function camelize(s){return s.replace(/-(.)/g,function(m,m1){return m1.toUpperCase()})}function decamelize(s){return s?s.replace(/([a-z])([A-Z])/g,"$1-$2").toLowerCase():s}function data(el){el[getAttribute]("data-node-uid")||el[setAttribute]("data-node-uid",++uuids);var uid=el[getAttribute]("data-node-uid");return uidMap[uid]||(uidMap[uid]={})}function clearData(el){var uid=el[getAttribute]("data-node-uid");uid&&delete uidMap[uid]}function dataValue(d){var f;try{return d===null||d===undefined?undefined:d==="true"?!0:d==="false"?!1:d==="null"?null:(f=parseFloat(d))==d?f:d}catch(e){}return undefined}function isNode(node){return node&&node.nodeName&&(node.nodeType==1||node.nodeType==11)}function some(ar,fn,opt_scope){for(var i=0,j=ar.length;i<j;++i)if(fn.call(opt_scope||null,ar[i],i,ar))return!0;return!1}function styleProperty(p){p=="transform"&&(p=features.transform)||/^transform-?[Oo]rigin$/.test(p)&&(p=features.transform+"Origin")||p=="float"&&(p=features.cssFloat);return p?camelize(p):null}function insert(target,host,fn,rev){var i=0,self=host||this,r=[],nodes=query&&typeof target=="string"&&target.charAt(0)!="<"?query(target):target;each(normalize(nodes),function(t,j){each(self,function(el){fn(t,r[i++]=j>0?cloneNode(self,el):el)},null,rev)},this,rev);self.length=i;each(r,function(e){self[--i]=e},null,!rev);return self}function xy(el,x,y){var $el=bonzo(el),style=$el.css("position"),offset=$el.offset(),rel="relative",isRel=style==rel,delta=[parseInt($el.css("left"),10),parseInt($el.css("top"),10)];if(style=="static"){$el.css("position",rel);style=rel}isNaN(delta[0])&&(delta[0]=isRel?0:el.offsetLeft);isNaN(delta[1])&&(delta[1]=isRel?0:el.offsetTop);x!=null&&(el.style.left=x-offset.left+delta[0]+px);y!=null&&(el.style.top=y-offset.top+delta[1]+px)}function setter(el,v){return typeof v=="function"?v(el):v}function Bonzo(elements){this.length=0;if(elements){elements=typeof elements!="string"&&!elements.nodeType&&typeof elements.length!="undefined"?elements:[elements];this.length=elements.length;for(var i=0;i<elements.length;i++)this[i]=elements[i]}}function normalize(node,host,clone){var i,l,ret;if(typeof node=="string")return bonzo.create(node);isNode(node)&&(node=[node]);if(clone){ret=[];for(i=0,l=node.length;i<l;i++)ret[i]=cloneNode(host,node[i]);return ret}return node}function cloneNode(host,el){var c=el.cloneNode(!0),cloneElems,elElems;if(host.$&&typeof host.cloneEvents=="function"){host.$(c).cloneEvents(el);cloneElems=host.$(c).find("*");elElems=host.$(el).find("*");for(var i=0;i<elElems.length;i++)host.$(cloneElems[i]).cloneEvents(elElems[i])}return c}function scroll(x,y,type){var el=this[0];if(!el)return this;if(x==null&&y==null)return(isBody(el)?getWindowScroll():{x:el.scrollLeft,y:el.scrollTop})[type];if(isBody(el))win.scrollTo(x,y);else{x!=null&&(el.scrollLeft=x);y!=null&&(el.scrollTop=y)}return this}function isBody(element){return element===win||/^(?:body|html)$/i.test(element.tagName)}function getWindowScroll(){return{x:win.pageXOffset||html.scrollLeft,y:win.pageYOffset||html.scrollTop}}function bonzo(els){return new Bonzo(els)}var win=window,doc=win.document,html=doc.documentElement,parentNode="parentNode",query=null,specialAttributes=/^(checked|value|selected|disabled)$/i,specialTags=/^(select|fieldset|table|tbody|tfoot|td|tr|colgroup)$/i,table=["<table>","</table>",1],td=["<table><tbody><tr>","</tr></tbody></table>",3],option=["<select>","</select>",1],noscope=["_","",0,1],tagMap={thead:table,tbody:table,tfoot:table,colgroup:table,caption:table,tr:["<table><tbody>","</tbody></table>",2],th:td,td:td,col:["<table><colgroup>","</colgroup></table>",2],fieldset:["<form>","</form>",1],legend:["<form><fieldset>","</fieldset></form>",2],option:option,optgroup:option,script:noscope,style:noscope,link:noscope,param:noscope,base:noscope},stateAttributes=/^(checked|selected|disabled)$/,ie=/msie/i.test(navigator.userAgent),hasClass,addClass,removeClass,uidMap={},uuids=0,digit=/^-?[\d\.]+$/,dattr=/^data-(.+)$/,px="px",setAttribute="setAttribute",getAttribute="getAttribute",byTag="getElementsByTagName",features=function(){var e=doc.createElement("p");e.innerHTML='<a href="#x">x</a><table style="float:left;"></table>';return{hrefExtended:e[byTag]("a")[0][getAttribute]("href")!="#x",autoTbody:e[byTag]("tbody").length!==0,computedStyle:doc.defaultView&&doc.defaultView.getComputedStyle,cssFloat:e[byTag]("table")[0].style.styleFloat?"styleFloat":"cssFloat",transform:function(){var props=["transform","webkitTransform","MozTransform","OTransform","msTransform"],i;for(i=0;i<props.length;i++)if(props[i]in e.style)return props[i]}(),classList:"classList"in e,opasity:function(){return typeof doc.createElement("a").style.opacity!="undefined"}()}}(),trimReplace=/(^\s*|\s*$)/g,whitespaceRegex=/\s+/,toString=String.prototype.toString,unitless={lineHeight:1,zoom:1,zIndex:1,opacity:1,boxFlex:1,WebkitBoxFlex:1,MozBoxFlex:1},trim=String.prototype.trim?function(s){return s.trim()}:function(s){return s.replace(trimReplace,"")},getStyle=features.computedStyle?function(el,property){var 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