基于浏览器 webrtc的屏幕共享示例代码

# Benchmark.js ^v1.0.0 <!-- div --> <!-- div --> ## <a id="Benchmark"></a>`Benchmark` * [`Benchmark`](#benchmarkname-fn--options) * [`Benchmark.version`](#benchmarkversion) * [`Benchmark.deepClone`](#benchmarkdeepclonevalue) * [`Benchmark.each`](#benchmarkeachobject-callback-thisarg) * [`Benchmark.extend`](#benchmarkextenddestination--source) * [`Benchmark.filter`](#benchmarkfilterarray-callback-thisarg) * [`Benchmark.forEach`](#benchmarkforeacharray-callback-thisarg) * [`Benchmark.formatNumber`](#benchmarkformatnumbernumber) * [`Benchmark.forOwn`](#benchmarkforownobject-callback-thisarg) * [`Benchmark.hasKey`](#benchmarkhaskeyobject-key) * [`Benchmark.indexOf`](#benchmarkindexofarray-value--fromindex0) * [`Benchmark.interpolate`](#benchmarkinterpolatestring-object) * [`Benchmark.invoke`](#benchmarkinvokebenches-name--arg1-arg2-) * [`Benchmark.join`](#benchmarkjoinobject--separator1--separator2:) * [`Benchmark.map`](#benchmarkmaparray-callback-thisarg) * [`Benchmark.pluck`](#benchmarkpluckarray-property) * [`Benchmark.reduce`](#benchmarkreducearray-callback-accumulator) <!-- /div --> <!-- div --> ## `Benchmark.prototype` * [`Benchmark.prototype.aborted`](#benchmarkprototypeaborted) * [`Benchmark.prototype.compiled`](#benchmarkprototypecompiled) * [`Benchmark.prototype.count`](#benchmarkprototypecount) * [`Benchmark.prototype.cycles`](#benchmarkprototypecycles) * [`Benchmark.prototype.fn`](#benchmarkprototypefn) * [`Benchmark.prototype.hz`](#benchmarkprototypehz) * [`Benchmark.prototype.running`](#benchmarkprototyperunning) * [`Benchmark.prototype.setup`](#benchmarkprototypesetup) * [`Benchmark.prototype.teardown`](#benchmarkprototypeteardown) * [`Benchmark.prototype.abort`](#benchmarkprototypeabort) * [`Benchmark.prototype.clone`](#benchmarkprototypecloneoptions) * [`Benchmark.prototype.compare`](#benchmarkprototypecompareother) * [`Benchmark.prototype.emit`](#benchmarkprototypeemittype) * [`Benchmark.prototype.listeners`](#benchmarkprototypelistenerstype) * [`Benchmark.prototype.off`](#benchmarkprototypeofftype-listener) * [`Benchmark.prototype.on`](#benchmarkprototypeontype-listener) * [`Benchmark.prototype.reset`](#benchmarkprototypereset) * [`Benchmark.prototype.run`](#benchmarkprototyperunoptions) * [`Benchmark.prototype.toString`](#benchmarkprototypetostring) <!-- /div --> <!-- div --> ## `Benchmark.options` * [`Benchmark.options`](#benchmarkoptions) * [`Benchmark.options.async`](#benchmarkoptionsasync) * [`Benchmark.options.defer`](#benchmarkoptionsdefer) * [`Benchmark.options.delay`](#benchmarkoptionsdelay) * [`Benchmark.options.id`](#benchmarkoptionsid) * [`Benchmark.options.initCount`](#benchmarkoptionsinitcount) * [`Benchmark.options.maxTime`](#benchmarkoptionsmaxtime) * [`Benchmark.options.minSamples`](#benchmarkoptionsminsamples) * [`Benchmark.options.minTime`](#benchmarkoptionsmintime) * [`Benchmark.options.name`](#benchmarkoptionsname) * [`Benchmark.options.onAbort`](#benchmarkoptionsonabort) * [`Benchmark.options.onComplete`](#benchmarkoptionsoncomplete) * [`Benchmark.options.onCycle`](#benchmarkoptionsoncycle) * [`Benchmark.options.onError`](#benchmarkoptionsonerror) * [`Benchmark.options.onReset`](#benchmarkoptionsonreset) * [`Benchmark.options.onStart`](#benchmarkoptionsonstart) <!-- /div --> <!-- div --> ## `Benchmark.platform` * [`Benchmark.platform`](#benchmarkplatform) * [`Benchmark.platform.description`](#benchmarkplatformdescription) * [`Benchmark.platform.layout`](#benchmarkplatformlayout) * [`Benchmark.platform.manufacturer`](#benchmarkplatformmanufacturer) * [`Benchmark.platform.name`](#benchmarkplatformname) * [`Benchmark.platform.os`](#benchmarkplatformos) * [`Benchmark.platform.prerelease`](#benchmarkplatformprerelease) * [`Benchmark.platform.product`](#benchmarkplatformproduct) * [`Benchmark.platform.version`](#benchmarkplatformversion) * [`Benchmark.platform.toString`](#benchmarkplatformtostring) <!-- /div --> <!-- div --> ## `Benchmark.support` * [`Benchmark.support`](#benchmarksupport) * [`Benchmark.support.air`](#benchmarksupportair) * [`Benchmark.support.argumentsClass`](#benchmarksupportargumentsclass) * [`Benchmark.support.browser`](#benchmarksupportbrowser) * [`Benchmark.support.charByIndex`](#benchmarksupportcharbyindex) * [`Benchmark.support.charByOwnIndex`](#benchmarksupportcharbyownindex) * [`Benchmark.support.decompilation`](#benchmarksupportdecompilation) * [`Benchmark.support.descriptors`](#benchmarksupportdescriptors) * [`Benchmark.support.getAllKeys`](#benchmarksupportgetallkeys) * [`Benchmark.support.iteratesOwnLast`](#benchmarksupportiteratesownfirst) * [`Benchmark.support.java`](#benchmarksupportjava) * [`Benchmark.support.nodeClass`](#benchmarksupportnodeclass) * [`Benchmark.support.timeout`](#benchmarksupporttimeout) <!-- /div --> <!-- div --> ## `Benchmark.prototype.error` * [`Benchmark.prototype.error`](#benchmarkprototypeerror) <!-- /div --> <!-- div --> ## `Benchmark.prototype.stats` * [`Benchmark.prototype.stats`](#benchmarkprototypestats) * [`Benchmark.prototype.stats.deviation`](#benchmark-statsdeviation) * [`Benchmark.prototype.stats.mean`](#benchmark-statsmean) * [`Benchmark.prototype.stats.moe`](#benchmark-statsmoe) * [`Benchmark.prototype.stats.rme`](#benchmark-statsrme) * [`Benchmark.prototype.stats.sample`](#benchmark-statssample) * [`Benchmark.prototype.stats.sem`](#benchmark-statssem) * [`Benchmark.prototype.stats.variance`](#benchmark-statsvariance) <!-- /div --> <!-- div --> ## `Benchmark.prototype.times` * [`Benchmark.prototype.times`](#benchmarkprototypetimes) * [`Benchmark.prototype.times.cycle`](#benchmark-timescycle) * [`Benchmark.prototype.times.elapsed`](#benchmark-timeselapsed) * [`Benchmark.prototype.times.period`](#benchmark-timesperiod) * [`Benchmark.prototype.times.timeStamp`](#benchmark-timestimestamp) <!-- /div --> <!-- div --> ## `Benchmark.Deferred` * [`Benchmark.Deferred`](#benchmarkdeferredclone) <!-- /div --> <!-- div --> ## `Benchmark.Deferred.prototype` * [`Benchmark.Deferred.prototype.benchmark`](#benchmarkdeferredprototypebenchmark) * [`Benchmark.Deferred.prototype.cycles`](#benchmarkdeferredprototypecycles) * [`Benchmark.Deferred.prototype.elapsed`](#benchmarkdeferredprototypeelapsed) * [`Benchmark.Deferred.prototype.resolve`](#benchmarkdeferredprototyperesolve) * [`Benchmark.Deferred.prototype.timeStamp`](#benchmarkdeferredprototypetimestamp) <!-- /div --> <!-- div --> ## `Benchmark.Event` * [`Benchmark.Event`](#benchmarkeventtype) <!-- /div --> <!-- div --> ## `Benchmark.Event.prototype` * [`Benchmark.Event.prototype.aborted`](#benchmarkeventprototypeaborted) * [`Benchmark.Event.prototype.cancelled`](#benchmarkeventprototypecancelled) * [`Benchmark.Event.prototype.result`](#benchmarkeventprototyperesult) * [`Benchmark.Event.prototype.timeStamp`](#benchmarkeventprototypetimestamp) * [`Benchmark.Event.prototype.type`](#benchmarkeventprototypetype) <!-- /div --> <!-- div --> ## `Benchmark.Event.prototype.currentTarget` * [`Benchmark.Event.prototype.currentTarget`](#benchmarkeventprototypecurrenttarget) <!-- /div --> <!-- div --> ## `Benchmark.Event.prototype.target` * [`Benchmark.Event.prototype.target`](#benchmarkeventprototypetarget) <!-- /div --> <!-- div --> ## `Benchmark.Suite` * [`Benchmark.Suite`](#benchmarksuitename--options) <!-- /div --> <!-- div --> ## `Benchmark.Suite.prototype` * [`Benchmark.Suite.prototype.aborted`](#benchmarksuiteprototypeaborted) * [`Benchmark.Suite.prototype.length`](#benchmarksuiteprototypelength) * [`Benchmark.Suite.prototype.running`](#benchmarksuiteprototyperunning) * [`Benchmark.Suite.prototype.abort`](#benchmarksuiteprototypeabort) * [`Benchmark.Suite.prototype.add`](#benchmarksuiteprototypeaddname-fn--options) * [`Benchmark.Suite.prototype.clone`](#benchmarksuiteprototypecloneoptions) * [`Benchmark.Suite.prototype.emit`](#benchmarkprototypeemittype) * [`Benchmark.Suite.prototype.filter`](#benchmarksuiteprototypefiltercallback) * [`Benchmark.Sui