requirebin sketch

index.js

var Benchmark = require('benchmark');
var suite = new Benchmark.Suite;

global.moutdifference = require('mout/array/difference');
global.assert = require('assert');

function setup() {

  destArr = [];

  var worstCaseArr1 = [];
  var worstCaseArr2 = [];

  for (var i = 0; i < 50; i++) {
    worstCaseArr1.push('prop1_' + i);
    worstCaseArr2.push('prop2_' + i);
  }

  // Basically an inlined version of mout/array/difference,
  // but the first parameter is the destination array to give
  // a bit of GC control back to the developer.
  function diffN(out, a, b, n) {
    if (a !== out) out.push.apply(out, a);
    for (var i = 2; i < arguments.length; i++) {
      var arr = arguments[i];
      for (var k = 0; k < arr.length; k++) {
        var idx = out.indexOf(arr[k]);
        if (idx !== -1) {
          out.splice(idx,1);
        }
      }
    }
    return out;
  }

  // This can only diff two arrays, instead of N like mout.
  // The first parameter is the destination array to give
  // a bit of GC control back to the developer.
  function diff2(out, a, b) {
    if (a !== out) out.push.apply(out, a);
    var arr = b;
    for (var k = 0; k < b.length; k++) {
      var idx = out.indexOf(b[k]);
      if (idx !== -1) {
        out.splice(idx,1);
      }
    }
    return out;
  }
}

function reset() {
  destArr.length = 0;
}

var bopts = { setup: setup, start: reset, cycle: reset, teardown: reset };

suite

.add('mout/array/difference', function() {
  destArr.length = 0;
  var d = moutdifference(worstCaseArr1, worstCaseArr2);
  assert(d[0], 'prop1_0');
}, bopts)

.add('diffN with new array', function() {
  destArr.length = 0;
  var d = diffN([], worstCaseArr1, worstCaseArr2);
  assert(d[0], 'prop1_0');
}, bopts)

.add('diffN with existing array', function() {
  destArr.length = 0;
  var d = diffN(destArr, worstCaseArr1, worstCaseArr2);
  assert(d[0], 'prop1_0');
}, bopts)

.add('diff2 with new array', function() {
  destArr.length = 0;
  var d = diff2([], worstCaseArr1, worstCaseArr2);
  assert(d[0], 'prop1_0');
}, bopts)

.add('diff2 with existing array', function() {
  destArr.length = 0;
  var d = diff2(destArr, worstCaseArr1, worstCaseArr2);
  assert(d[0], 'prop1_0');
}, bopts)

.add('manual loop with new array', function() {
  destArr.length = 0;
  var out = [];
  out.push.apply(out, worstCaseArr1);
  for (var i = 0, len = worstCaseArr2.length; i < len; i++) {
    var found = out.indexOf(worstCaseArr2[i]);
    if (found > -1) {
      out.splice(found, 1);
    }
  }
}, bopts)

.add('manual loop with existing array', function() {
  destArr.length = 0;
  var out = destArr;
  out.push.apply(out, worstCaseArr1);
  for (var i = 0, len = worstCaseArr2.length; i < len; i++) {
    var found = out.indexOf(worstCaseArr2[i]);
    if (found > -1) {
      out.splice(found, 1);
    }
  }
}, bopts)

// add listeners
.on('cycle', function(event) {
  console.log(String(event.target));
})
.on('complete', function() {
  console.log('Fastest is ' + this.filter('fastest').pluck('name'));
})
.on('error', console.error.bind(console))
// run async
.run({ 'async': false });

minified.js

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in array&&value===array[index]){return index}}return-1}function interpolate(string,object){forOwn(object,function(value,key){string=string.replace(RegExp("#\\{"+key.replace(/([.*+?^=!:${}()|[\]\/\\])/g,"\\$1")+"\\}","g"),value)});return string}function invoke(benches,name){var args,bench,queued,index=-1,eventProps={currentTarget:benches},options={onStart:noop,onCycle:noop,onComplete:noop},result=map(benches,function(bench){return bench});function execute(){var listeners,async=isAsync(bench);if(async){bench.on("complete",getNext);listeners=bench.events.complete;listeners.splice(0,0,listeners.pop())}result[index]=isClassOf(bench&&bench[name],"Function")?bench[name].apply(bench,args):undefined;return!async&&getNext()}function getNext(event){var cycleEvent,last=bench,async=isAsync(last);if(async){last.off("complete",getNext);last.emit("complete")}eventProps.type="cycle";eventProps.target=last;cycleEvent=Event(eventProps);options.onCycle.call(benches,cycleEvent);if(!cycleEvent.aborted&&raiseIndex()!==false){bench=queued?benches[0]:result[index];if(isAsync(bench)){delay(bench,execute)}else if(async){while(execute()){}}else{return true}}else{eventProps.type="complete";options.onComplete.call(benches,Event(eventProps))}if(event){event.aborted=true}else{return false}}function isAsync(object){var async=args[0]&&args[0].async;return Object(object).constructor==Benchmark&&name=="run"&&((async==null?object.options.async:async)&&support.timeout||object.defer)}function raiseIndex(){var length=result.length;if(queued){do{++index>0&&shift.call(benches)}while((length=benches.length)&&!("0"in benches))}else{while(++index<length&&!(index in result)){}}return(queued?length:index<length)?index:index=false}if(isClassOf(name,"String")){args=slice.call(arguments,2)}else{options=extend(options,name);name=options.name;args=isClassOf(args="args"in options?options.args:[],"Array")?args:[args];queued=options.queued}if(raiseIndex()!==false){bench=result[index];eventProps.type="start";eventProps.target=bench;options.onStart.call(benches,Event(eventProps));if(benches.aborted&&benches.constructor==Suite&&name=="run"){eventProps.type="cycle";options.onCycle.call(benches,Event(eventProps));eventProps.type="complete";options.onComplete.call(benches,Event(eventProps))}else{if(isAsync(bench)){delay(bench,execute)}else{while(execute()){}}}}return result}function join(object,separator1,separator2){var result=[],length=(object=Object(object)).length,arrayLike=length===length>>>0;separator2||(separator2=": ");each(object,function(value,key){result.push(arrayLike?value:key+separator2+value)});return result.join(separator1||",")}function map(array,callback,thisArg){return reduce(array,function(result,value,index){result[index]=callback.call(thisArg,value,index,array);return result},Array(Object(array).length>>>0))}function pluck(array,property){return map(array,function(object){return object==null?undefined:object[property]})}function reduce(array,callback,accumulator){var noaccum=arguments.length<3;forEach(array,function(value,index){accumulator=noaccum?(noaccum=false,value):callback(accumulator,value,index,array)});return accumulator}function abortSuite(){var event,me=this,resetting=calledBy.resetSuite;if(me.running){event=Event("abort");me.emit(event);if(!event.cancelled||resetting){calledBy.abortSuite=true;me.reset();delete calledBy.abortSuite;if(!resetting){me.aborted=true;invoke(me,"abort")}}}return me}function add(name,fn,options){var me=this,bench=Benchmark(name,fn,options),event=Event({type:"add",target:bench});if(me.emit(event),!event.cancelled){me.push(bench)}return me}function cloneSuite(options){var me=this,result=new me.constructor(extend({},me.options,options));forOwn(me,function(value,key){if(!hasKey(result,key)){result[key]=value&&isClassOf(value.clone,"Function")?value.clone():deepClone(value)}});return result}function filterSuite(callback){var me=this,result=new me.constructor;result.push.apply(result,filter(me,callback));return result}function resetSuite(){var event,me=this,aborting=calledBy.abortSuite;if(me.running&&!aborting){calledBy.resetSuite=true;me.abort();delete calledBy.resetSuite}else if((me.aborted||me.running)&&(me.emit(event=Event("reset")),!event.cancelled)){me.running=false;if(!aborting){invoke(me,"reset")}}return me}function runSuite(options){var me=this;me.reset();me.running=true;options||(options={});invoke(me,{name:"run",args:options,queued:options.queued,onStart:function(event){me.emit(event)},onCycle:function(event){var bench=event.target;if(bench.error){me.emit({type:"error",target:bench})}me.emit(event);event.aborted=me.aborted},onComplete:function(event){me.running=false;me.emit(event)}});return me}function emit(type){var listeners,me=this,event=Event(type),events=me.events,args=(arguments[0]=event,arguments);event.currentTarget||(event.currentTarget=me);event.target||(event.target=me);delete event.result;if(events&&(listeners=hasKey(events,event.type)&&events[event.type])){forEach(listeners.slice(),function(listener){if((event.result=listener.apply(me,args))===false){event.cancelled=true}return!event.aborted})}return event.result}function listeners(type){var me=this,events=me.events||(me.events={});return hasKey(events,type)?events[type]:events[type]=[]}function off(type,listener){var me=this,events=me.events;events&&each(type?type.split(" "):events,function(listeners,type){var index;if(typeof listeners=="string"){type=listeners;listeners=hasKey(events,type)&&events[type]}if(listeners){if(listener){index=indexOf(listeners,listener);if(index>-1){listeners.splice(index,1)}}else{listeners.length=0}}});return me}function on(type,listener){var me=this,events=me.events||(me.events={});forEach(type.split(" "),function(type){(hasKey(events,type)?events[type]:events[type]=[]).push(listener)});return me}function abort(){var event,me=this,resetting=calledBy.reset;if(me.running){event=Event("abort");me.emit(event);if(!event.cancelled||resetting){calledBy.abort=true;me.reset();delete calledBy.abort;if(support.timeout){clearTimeout(me._timerId);delete me._timerId}if(!resetting){me.aborted=true;me.running=false}}}return me}function clone(options){var me=this,result=new me.constructor(extend({},me,options));result.options=extend({},me.options,options);forOwn(me,function(value,key){if(!hasKey(result,key)){result[key]=deepClone(value)}});return result}function compare(other){var critical,zStat,me=this,sample1=me.stats.sample,sample2=other.stats.sample,size1=sample1.length,size2=sample2.length,maxSize=max(size1,size2),minSize=min(size1,size2),u1=getU(sample1,sample2),u2=getU(sample2,sample1),u=min(u1,u2);function getScore(xA,sampleB){return reduce(sampleB,function(total,xB){return total+(xB>xA?0:xB<xA?1:.5)},0)}function getU(sampleA,sampleB){return reduce(sampleA,function(total,xA){return total+getScore(xA,sampleB)},0)}function getZ(u){return(u-size1*size2/2)/sqrt(size1*size2*(size1+size2+1)/12)}if(me==other){return 0}if(size1+size2>30){zStat=getZ(u);return abs(zStat)>1.96?zStat>0?-1:1:0}critical=maxSize<5||minSize<3?0:uTable[maxSize][minSize-3];return u<=critical?u==u1?1:-1:0}function reset(){var data,event,me=this,index=0,changes={length:0},queue={length:0};if(me.running&&!calledBy.abort){calledBy.reset=true;me.abort();delete calledBy.reset}else{data={destination:me,source:extend({},me.constructor.prototype,me.options)};do{forOwn(data.source,function(value,key){var changed,destination=data.destination,currValue=destination[key];if(value&&typeof value=="object"){if(isClassOf(value,"Array")){if(!isClassOf(currValue,"Array")){changed=currValue=[]}if(currValue.length!=value.length){changed=currValue=currValue.slice(0,value.length);currValue.length=value.length}}else if(!currValue||typeof currValue!="object"){changed=currValue={}}if(changed){changes[changes.length++]={destination:destination,key:key,value:currValue}}queue[queue.length++]={destination:currValue,source:value}}else if(value!==currValue&&!(value==null||isClassOf(value,"Function"))){changes[changes.length++]={destination:destination,key:key,value:value}}})}while(data=queue[index++]);if(changes.length&&(me.emit(event=Event("reset")),!event.cancelled)){forEach(changes,function(data){data.destination[data.key]=data.value})}}return me}function toStringBench(){var me=this,error=me.error,hz=me.hz,id=me.id,stats=me.stats,size=stats.sample.length,pm=support.java?"+/-":"±",result=me.name||(isNaN(id)?id:"<Test #"+id+">");if(error){result+=": "+join(error)}else{result+=" x "+formatNumber(hz.toFixed(hz<100?2:0))+" ops/sec "+pm+stats.rme.toFixed(2)+"% ("+size+" run"+(size==1?"":"s")+" sampled)"}return result}function clock(){var applet,options=Benchmark.options,template={begin:"s$=new n$",end:"r$=(new n$-s$)/1e3",uid:uid},timers=[{ns:timer.ns,res:max(.0015,getRes("ms")),unit:"ms"}];clock=function(clone){var deferred;if(clone instanceof Deferred){deferred=clone;clone=deferred.benchmark}var bench=clone._original,fn=bench.fn,fnArg=deferred?getFirstArgument(fn)||"deferred":"",stringable=isStringable(fn);var source={setup:getSource(bench.setup,preprocess("m$.setup()")),fn:getSource(fn,preprocess("m$.fn("+fnArg+")")),fnArg:fnArg,teardown:getSource(bench.teardown,preprocess("m$.teardown()"))};var count=bench.count=clone.count,decompilable=support.decompilation||stringable,id=bench.id,isEmpty=!(source.fn||stringable),name=bench.name||(typeof id=="number"?"<Test #"+id+">":id),ns=timer.ns,result=0;clone.minTime=bench.minTime||(bench.minTime=bench.options.minTime=options.minTime);if(applet){try{ns.nanoTime()}catch(e){ns=timer.ns=new applet.Packages.nano}}var compiled=bench.compiled=createFunction(preprocess("t$"),interpolate(preprocess(deferred?"var d$=this,#{fnArg}=d$,m$=d$.benchmark._original,f$=m$.fn,su$=m$.setup,td$=m$.teardown;"+"if(!d$.cycles){"+'d$.fn=function(){var #{fnArg}=d$;if(typeof f$=="function"){try{#{fn}\n}catch(e$){f$(d$)}}else{#{fn}\n}};'+'d$.teardown=function(){d$.cycles=0;if(typeof td$=="function"){try{#{teardown}\n}catch(e$){td$()}}else{#{teardown}\n}};'+'if(typeof su$=="function"){try{#{setup}\n}catch(e$){su$()}}else{#{setup}\n};'+"t$.start(d$);"+"}d$.fn();return{}":"var r$,s$,m$=this,f$=m$.fn,i$=m$.count,n$=t$.ns;#{setup}\n#{begin};"+'while(i$--){#{fn}\n}#{end};#{teardown}\nreturn{elapsed:r$,uid:"#{uid}"}'),source));try{if(isEmpty){throw new Error('The test "'+name+'" is empty. This may be the result of dead code removal.')}else if(!deferred){bench.count=1;compiled=(compiled.call(bench,timer)||{}).uid==uid&&compiled;bench.count=count}}catch(e){compiled=null;clone.error=e||new Error(String(e));bench.count=count}if(decompilable&&!compiled&&!deferred&&!isEmpty){compiled=createFunction(preprocess("t$"),interpolate(preprocess((clone.error&&!stringable?"var r$,s$,m$=this,f$=m$.fn,i$=m$.count":"function f$(){#{fn}\n}var r$,s$,m$=this,i$=m$.count")+",n$=t$.ns;#{setup}\n#{begin};m$.f$=f$;while(i$--){m$.f$()}#{end};"+"delete m$.f$;#{teardown}\nreturn{elapsed:r$}"),source));try{bench.count=1;compiled.call(bench,timer);bench.compiled=compiled;bench.count=count;delete clone.error}catch(e){bench.count=count;if(clone.error){compiled=null}else{bench.compiled=compiled;clone.error=e||new Error(String(e))}}}clone.compiled=compiled;if(!clone.error){result=compiled.call(deferred||bench,timer).elapsed}return result};function getRes(unit){var measured,begin,count=30,divisor=1e3,ns=timer.ns,sample=[];while(count--){if(unit=="us"){divisor=1e6;if(ns.stop){ns.start();while(!(measured=ns.microseconds())){}}else if(ns[perfName]){divisor=1e3;measured=Function("n","var r,s=n."+perfName+"();while(!(r=n."+perfName+"()-s)){};return r")(ns)}else{begin=ns();while(!(measured=ns()-begin)){}}}else if(unit=="ns"){divisor=1e9;if(ns.nanoTime){begin=ns.nanoTime();while(!(measured=ns.nanoTime()-begin)){}}else{begin=(begin=ns())[0]+begin[1]/divisor;while(!(measured=(measured=ns())[0]+measured[1]/divisor-begin)){}divisor=1}}else{begin=new ns;while(!(measured=new ns-begin)){}}if(measured>0){sample.push(measured)}else{sample.push(Infinity);break;

}}return getMean(sample)/divisor}function preprocess(code){return interpolate(code,template).replace(/\$/g,/\d+/.exec(uid))}each(doc&&doc.applets||[],function(element){return!(timer.ns=applet="nanoTime"in element&&element)});try{if(typeof timer.ns.nanoTime()=="number"){timers.push({ns:timer.ns,res:getRes("ns"),unit:"ns"})}}catch(e){}try{if(timer.ns=new(window.chrome||window.chromium).Interval){timers.push({ns:timer.ns,res:getRes("us"),unit:"us"})}}catch(e){}if(timer.ns=perfName&&perfObject){timers.push({ns:timer.ns,res:getRes("us"),unit:"us"})}if(processObject&&typeof(timer.ns=processObject.hrtime)=="function"){timers.push({ns:timer.ns,res:getRes("ns"),unit:"ns"})}if(microtimeObject&&typeof(timer.ns=microtimeObject.now)=="function"){timers.push({ns:timer.ns,res:getRes("us"),unit:"us"})}timer=reduce(timers,function(timer,other){return other.res<timer.res?other:timer});if(timer.unit!="ns"&&applet){applet=destroyElement(applet)}if(timer.res==Infinity){throw new Error("Benchmark.js was unable to find a working timer.")}if(timer.unit=="ns"){if(timer.ns.nanoTime){extend(template,{begin:"s$=n$.nanoTime()",end:"r$=(n$.nanoTime()-s$)/1e9"})}else{extend(template,{begin:"s$=n$()",end:"r$=n$(s$);r$=r$[0]+(r$[1]/1e9)"})}}else if(timer.unit=="us"){if(timer.ns.stop){extend(template,{begin:"s$=n$.start()",end:"r$=n$.microseconds()/1e6"})}else if(perfName){extend(template,{begin:"s$=n$."+perfName+"()",end:"r$=(n$."+perfName+"()-s$)/1e3"})}else{extend(template,{begin:"s$=n$()",end:"r$=(n$()-s$)/1e6"})}}timer.start=createFunction(preprocess("o$"),preprocess("var n$=this.ns,#{begin};o$.elapsed=0;o$.timeStamp=s$"));timer.stop=createFunction(preprocess("o$"),preprocess("var n$=this.ns,s$=o$.timeStamp,#{end};o$.elapsed=r$"));options.minTime||(options.minTime=max(timer.res/2/.01,.05));return clock.apply(null,arguments)}function compute(bench,options){options||(options={});var async=options.async,elapsed=0,initCount=bench.initCount,minSamples=bench.minSamples,queue=[],sample=bench.stats.sample;function enqueue(){queue.push(bench.clone({_original:bench,events:{abort:[update],cycle:[update],error:[update],start:[update]}}))}function update(event){var clone=this,type=event.type;if(bench.running){if(type=="start"){clone.count=bench.initCount}else{if(type=="error"){bench.error=clone.error}if(type=="abort"){bench.abort();bench.emit("cycle")}else{event.currentTarget=event.target=bench;bench.emit(event)}}}else if(bench.aborted){clone.events.abort.length=0;clone.abort()}}function evaluate(event){var critical,df,mean,moe,rme,sd,sem,variance,clone=event.target,done=bench.aborted,now=+new Date,size=sample.push(clone.times.period),maxedOut=size>=minSamples&&(elapsed+=now-clone.times.timeStamp)/1e3>bench.maxTime,times=bench.times,varOf=function(sum,x){return sum+pow(x-mean,2)};if(done||clone.hz==Infinity){maxedOut=!(size=sample.length=queue.length=0)}if(!done){mean=getMean(sample);variance=reduce(sample,varOf,0)/(size-1)||0;sd=sqrt(variance);sem=sd/sqrt(size);df=size-1;critical=tTable[Math.round(df)||1]||tTable.infinity;moe=sem*critical;rme=moe/mean*100||0;extend(bench.stats,{deviation:sd,mean:mean,moe:moe,rme:rme,sem:sem,variance:variance});if(maxedOut){bench.initCount=initCount;bench.running=false;done=true;times.elapsed=(now-times.timeStamp)/1e3}if(bench.hz!=Infinity){bench.hz=1/mean;times.cycle=mean*bench.count;times.period=mean}}if(queue.length<2&&!maxedOut){enqueue()}event.aborted=done}enqueue();invoke(queue,{name:"run",args:{async:async},queued:true,onCycle:evaluate,onComplete:function(){bench.emit("complete")}})}function cycle(clone,options){options||(options={});var deferred;if(clone instanceof Deferred){deferred=clone;clone=clone.benchmark}var clocked,cycles,divisor,event,minTime,period,async=options.async,bench=clone._original,count=clone.count,times=clone.times;if(clone.running){cycles=++clone.cycles;clocked=deferred?deferred.elapsed:clock(clone);minTime=clone.minTime;if(cycles>bench.cycles){bench.cycles=cycles}if(clone.error){event=Event("error");event.message=clone.error;clone.emit(event);if(!event.cancelled){clone.abort()}}}if(clone.running){bench.times.cycle=times.cycle=clocked;period=bench.times.period=times.period=clocked/count;bench.hz=clone.hz=1/period;bench.initCount=clone.initCount=count;clone.running=clocked<minTime;if(clone.running){if(!clocked&&(divisor=divisors[clone.cycles])!=null){count=floor(4e6/divisor)}if(count<=clone.count){count+=Math.ceil((minTime-clocked)/period)}clone.running=count!=Infinity}}event=Event("cycle");clone.emit(event);if(event.aborted){clone.abort()}if(clone.running){clone.count=count;if(deferred){clone.compiled.call(deferred,timer)}else if(async){delay(clone,function(){cycle(clone,options)})}else{cycle(clone)}}else{if(support.browser){runScript(uid+"=1;delete "+uid)}clone.emit("complete")}}function run(options){var me=this,event=Event("start");me.running=false;me.reset();me.running=true;me.count=me.initCount;me.times.timeStamp=+new Date;me.emit(event);if(!event.cancelled){options={async:((options=options&&options.async)==null?me.async:options)&&support.timeout};if(me._original){if(me.defer){Deferred(me)}else{cycle(me,options)}}else{compute(me,options)}}return me}extend(Benchmark,{options:{async:false,defer:false,delay:.005,id:undefined,initCount:1,maxTime:5,minSamples:5,minTime:0,name:undefined,onAbort:undefined,onComplete:undefined,onCycle:undefined,onError:undefined,onReset:undefined,onStart:undefined},platform:req("platform")||window.platform||{description:window.navigator&&navigator.userAgent||null,layout:null,product:null,name:null,manufacturer:null,os:null,prerelease:null,version:null,toString:function(){return this.description||""}},version:"1.0.0",support:support,deepClone:deepClone,each:each,extend:extend,filter:filter,forEach:forEach,forOwn:forOwn,formatNumber:formatNumber,hasKey:(hasKey(Benchmark,""),hasKey),indexOf:indexOf,interpolate:interpolate,invoke:invoke,join:join,map:map,pluck:pluck,reduce:reduce});extend(Benchmark.prototype,{count:0,cycles:0,hz:0,compiled:undefined,error:undefined,fn:undefined,aborted:false,running:false,setup:noop,teardown:noop,stats:{moe:0,rme:0,sem:0,deviation:0,mean:0,sample:[],variance:0},times:{cycle:0,elapsed:0,period:0,timeStamp:0},abort:abort,clone:clone,compare:compare,emit:emit,listeners:listeners,off:off,on:on,reset:reset,run:run,toString:toStringBench});extend(Deferred.prototype,{benchmark:null,cycles:0,elapsed:0,timeStamp:0,resolve:resolve});extend(Event.prototype,{aborted:false,cancelled:false,currentTarget:undefined,result:undefined,target:undefined,timeStamp:0,type:""});Suite.options={name:undefined};extend(Suite.prototype,{length:0,aborted:false,running:false,forEach:methodize(forEach),indexOf:methodize(indexOf),invoke:methodize(invoke),join:[].join,map:methodize(map),pluck:methodize(pluck),pop:[].pop,push:[].push,sort:[].sort,reduce:methodize(reduce),abort:abortSuite,add:add,clone:cloneSuite,emit:emit,filter:filterSuite,listeners:listeners,off:off,on:on,reset:resetSuite,run:runSuite,concat:concat,reverse:reverse,shift:shift,slice:slice,splice:splice,unshift:unshift});extend(Benchmark,{Deferred:Deferred,Event:Event,Suite:Suite});if(typeof 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s}({1:[function(require,module,exports){if(typeof Object.create==="function"){module.exports=function inherits(ctor,superCtor){ctor.super_=superCtor;ctor.prototype=Object.create(superCtor.prototype,{constructor:{value:ctor,enumerable:false,writable:true,configurable:true}})}}else{module.exports=function inherits(ctor,superCtor){ctor.super_=superCtor;var TempCtor=function(){};TempCtor.prototype=superCtor.prototype;ctor.prototype=new TempCtor;ctor.prototype.constructor=ctor}}},{}],2:[function(require,module,exports){var process=module.exports={};process.nextTick=function(){var canSetImmediate=typeof window!=="undefined"&&window.setImmediate;var canMutationObserver=typeof window!=="undefined"&&window.MutationObserver;var canPost=typeof window!=="undefined"&&window.postMessage&&window.addEventListener;if(canSetImmediate){return function(f){return window.setImmediate(f)}}var queue=[];if(canMutationObserver){var hiddenDiv=document.createElement("div");var observer=new 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arg==="boolean"}exports.isBoolean=isBoolean;function isNull(arg){return arg===null}exports.isNull=isNull;function isNullOrUndefined(arg){return arg==null}exports.isNullOrUndefined=isNullOrUndefined;function isNumber(arg){return typeof arg==="number"}exports.isNumber=isNumber;function isString(arg){return typeof arg==="string"}exports.isString=isString;function isSymbol(arg){return typeof arg==="symbol"}exports.isSymbol=isSymbol;function isUndefined(arg){return arg===void 0}exports.isUndefined=isUndefined;function isRegExp(re){return isObject(re)&&objectToString(re)==="[object RegExp]"}exports.isRegExp=isRegExp;function isObject(arg){return typeof arg==="object"&&arg!==null}exports.isObject=isObject;function isDate(d){return isObject(d)&&objectToString(d)==="[object Date]"}exports.isDate=isDate;function isError(e){return isObject(e)&&(objectToString(e)==="[object Error]"||e instanceof Error)}exports.isError=isError;function isFunction(arg){return typeof 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equal(actual,expected,message){if(actual!=expected)fail(actual,expected,message,"==",assert.equal)};assert.notEqual=function notEqual(actual,expected,message){if(actual==expected){fail(actual,expected,message,"!=",assert.notEqual)}};assert.deepEqual=function deepEqual(actual,expected,message){if(!_deepEqual(actual,expected)){fail(actual,expected,message,"deepEqual",assert.deepEqual)}};function _deepEqual(actual,expected){if(actual===expected){return true}else if(util.isBuffer(actual)&&util.isBuffer(expected)){if(actual.length!=expected.length)return false;for(var i=0;i<actual.length;i++){if(actual[i]!==expected[i])return false}return true}else if(util.isDate(actual)&&util.isDate(expected)){return actual.getTime()===expected.getTime()}else if(util.isRegExp(actual)&&util.isRegExp(expected)){return actual.source===expected.source&&actual.global===expected.global&&actual.multiline===expected.multiline&&actual.lastIndex===expected.lastIndex&&actual.ignoreCase===expected.ignoreCase}else 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("+expected.name+").":".")+(message?" 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false}}return true})}function isEqual(a,b){return a===b}module.exports=unique},{"./filter":2}],7:[function(require,module,exports){function identity(val){return val}module.exports=identity},{}],8:[function(require,module,exports){var identity=require("./identity");var prop=require("./prop");var deepMatches=require("../object/deepMatches");function makeIterator(src,thisObj){if(src==null){return identity}switch(typeof src){case"function":return typeof thisObj!=="undefined"?function(val,i,arr){return src.call(thisObj,val,i,arr)}:src;case"object":return function(val){return deepMatches(val,src)};case"string":case"number":return prop(src)}}module.exports=makeIterator},{"../object/deepMatches":13,"./identity":7,"./prop":9}],9:[function(require,module,exports){function prop(name){return function(obj){return obj[name]}}module.exports=prop},{}],10:[function(require,module,exports){var isKind=require("./isKind");var isArray=Array.isArray||function(val){return 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result=true;forOwn(pattern,function(val,key){if(!deepMatches(target[key],val)){return result=false}});return result}function deepMatches(target,pattern){if(target&&typeof target==="object"){if(isArray(target)&&isArray(pattern)){return matchArray(target,pattern)}else{return matchObject(target,pattern)}}else{return target===pattern}}module.exports=deepMatches},{"../lang/isArray":10,"./forOwn":15}],14:[function(require,module,exports){var hasOwn=require("./hasOwn");var _hasDontEnumBug,_dontEnums;function checkDontEnum(){_dontEnums=["toString","toLocaleString","valueOf","hasOwnProperty","isPrototypeOf","propertyIsEnumerable","constructor"];_hasDontEnumBug=true;for(var key in{toString:null}){_hasDontEnumBug=false}}function forIn(obj,fn,thisObj){var key,i=0;if(_hasDontEnumBug==null)checkDontEnum();for(key in obj){if(exec(fn,obj,key,thisObj)===false){break}}if(_hasDontEnumBug){var ctor=obj.constructor,isProto=!!ctor&&obj===ctor.prototype;while(key=_dontEnums[i++]){if((key!=="constructor"||!isProto&&hasOwn(obj,key))&&obj[key]!==Object.prototype[key]){if(exec(fn,obj,key,thisObj)===false){break}}}}}function exec(fn,obj,key,thisObj){return fn.call(thisObj,obj[key],key,obj)}module.exports=forIn},{"./hasOwn":16}],15:[function(require,module,exports){var hasOwn=require("./hasOwn");var forIn=require("./forIn");function forOwn(obj,fn,thisObj){forIn(obj,function(val,key){if(hasOwn(obj,key)){return fn.call(thisObj,obj[key],key,obj)}})}module.exports=forOwn},{"./forIn":14,"./hasOwn":16}],16:[function(require,module,exports){function hasOwn(obj,prop){return Object.prototype.hasOwnProperty.call(obj,prop)}module.exports=hasOwn},{}],"mout/array/difference":[function(require,module,exports){var unique=require("./unique");var filter=require("./filter");var some=require("./some");var contains=require("./contains");var slice=require("./slice");function difference(arr){var arrs=slice(arguments,1),result=filter(unique(arr),function(needle){return!some(arrs,function(haystack){return contains(haystack,needle)})});return result}module.exports=difference},{"./contains":1,"./filter":2,"./slice":4,"./some":5,"./unique":6}]},{},[]);var Benchmark=require("benchmark");var suite=new Benchmark.Suite;global.moutdifference=require("mout/array/difference");global.assert=require("assert");function setup(){destArr=[];var worstCaseArr1=[];var worstCaseArr2=[];for(var i=0;i<50;i++){worstCaseArr1.push("prop1_"+i);worstCaseArr2.push("prop2_"+i)}function diffN(out,a,b,n){if(a!==out)out.push.apply(out,a);for(var i=2;i<arguments.length;i++){var arr=arguments[i];for(var k=0;k<arr.length;k++){var idx=out.indexOf(arr[k]);if(idx!==-1){out.splice(idx,1)}}}return out}function diff2(out,a,b){if(a!==out)out.push.apply(out,a);var arr=b;for(var k=0;k<b.length;k++){var idx=out.indexOf(b[k]);if(idx!==-1){out.splice(idx,1)}}return out}}function reset(){destArr.length=0}var bopts={setup:setup,start:reset,cycle:reset,teardown:reset};suite.add("mout/array/difference",function(){destArr.length=0;var d=moutdifference(worstCaseArr1,worstCaseArr2);assert(d[0],"prop1_0")},bopts).add("diffN with new array",function(){destArr.length=0;var d=diffN([],worstCaseArr1,worstCaseArr2);

assert(d[0],"prop1_0")},bopts).add("diffN with existing array",function(){destArr.length=0;var d=diffN(destArr,worstCaseArr1,worstCaseArr2);assert(d[0],"prop1_0")},bopts).add("diff2 with new array",function(){destArr.length=0;var d=diff2([],worstCaseArr1,worstCaseArr2);assert(d[0],"prop1_0")},bopts).add("diff2 with existing array",function(){destArr.length=0;var d=diff2(destArr,worstCaseArr1,worstCaseArr2);assert(d[0],"prop1_0")},bopts).add("manual loop with new array",function(){destArr.length=0;var out=[];out.push.apply(out,worstCaseArr1);for(var i=0,len=worstCaseArr2.length;i<len;i++){var found=out.indexOf(worstCaseArr2[i]);if(found>-1){out.splice(found,1)}}},bopts).add("manual loop with existing array",function(){destArr.length=0;var out=destArr;out.push.apply(out,worstCaseArr1);for(var i=0,len=worstCaseArr2.length;i<len;i++){var found=out.indexOf(worstCaseArr2[i]);if(found>-1){out.splice(found,1)}}},bopts).on("cycle",function(event){console.log(String(event.target))}).on("complete",function(){console.log("Fastest is "+this.filter("fastest").pluck("name"))}).on("error",console.error.bind(console)).run({async:false});

package.json

{
  "name": "requirebin-sketch",
  "version": "1.0.0",
  "dependencies": {
    "benchmark": "1.0.0",
    "mout": "0.11.0"
  }
}

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