Hat主题的文章列表，还有Hat的技术要点_第9页

What's the difference between SDK and Runtime in .NET Core?

Accordingtothe.NetCoreGuide,.NETCoreiscomposedofthefollowingitems/A.NETruntime,whichprovidesatypesystem,assemblyloading,agarbagecollector,nativeinteropandotherb...

代码星球 ·2021-02-08

What are the differences between Flyweight and Object Pool patterns?

Theydifferinthewaytheyareused.Pooledobjectscansimultaneouslybeusedbyasingle"client"only.Forthat,apooledobjectmustbecheckedoutfromthepool,thenitcanbeusedbyaclien...

代码星球 ·2021-02-08

What is event bubbling and capturing?

答案1EventbubblingandcapturingaretwowaysofeventpropagationintheHTMLDOMAPI,whenaneventoccursinanelementinsideanotherelement,andbothelementshaveregisteredahandlefor...

代码星球 ·2021-02-08

What is the difference between visibility:hidden and display:none?

答案1display:nonemeansthatthetaginquestionwillnotappearonthepageatall(althoughyoucanstillinteractwithitthroughthedom).Therewillbenospaceallocatedforitbetweentheot...

代码星球 ·2021-02-08

What size do you use for varchar(MAX) in your parameter declaration?

Inthiscaseyouuse-1.SeealsoMSDNdocs:msdn.microsoft.com/en-us/library/bb399384.aspxLargevaluetypescanbeusedinSqlParameterobjectsthesamewayyouusesmallervaluetypesi...

代码星球 ·2021-02-08

What is the difference between UserControl, WebControl, RenderedControl and CompositeControl?

UserControl:Acustomcontrol,endingin.ascx,thatiscomposedofotherwebcontrols.Itsalmostlikeasmallversionofanaspxwebpage.ItconsistsofaUI(theascx)andcodebehind.Cannot...

代码星球 ·2021-02-08

What is httpcontext

EncapsulatesallHTTP-specificinformationaboutanindividualHTTPrequest. ClassesthatinherittheIHttpModuleandIHttpHandlerinterfacesareprovidedareferencetoanHttp...

代码星球 ·2021-02-08

What does the dot after dollar sign mean in jQuery when declaring variables?

https://stackoverflow.com/questions/22156664/what-does-the-dot-after-dollar-sign-mean-in-jquery-when-declaring-variablesIseevariablesdeclaredas:$.root=$("body")...

代码星球 ·2021-02-08

What is 'typeof define === 'function' && define['amd']' used for?

Thiscodechecksforthepresenceofrequire.js,aJavaScriptdependencymanagementlibrary.If'define'isnotundefinedanditisafunctionand'amd'(asynchronousmoduledefinition)is...

代码星球 ·2021-02-08

What's the difference between HEAD^ and HEAD~ in Git?

Use~mostofthetime—togobackanumberofgenerations,usuallywhatyouwantUse^onmergecommits—becausetheyhavetwoormore(immediate)parentsMnemonics:Tilde~isalmo...

代码星球 ·2021-02-08

What is the !! (not not) operator in JavaScript?

解答1Coerces强制 oObject toboolean.Ifitwasfalsey(e.g.0, null, undefined,etc.),itwillbe false,otherwise, true.!oObject//Invertedboolean...

代码星球 ·2021-02-08

In an ASP.NET website with a codebehind at what point are the .cs files compiled?

Thisappliesto WebApplication projectsasopposedto WebSite projects,whichare CodeFile bydefault,anddon'tallowchangingthebuilda...

代码星球 ·2021-02-08

What is the most efficient way to deep clone an object in JavaScript?

Sincecloningobjectsisnottrivial(complextypes,circularreferences,functionetc.),mostmajorlibrariesprovidefunctiontocloneobjects.Don'treinventthewheel-ifyou'realre...

代码星球 ·2021-02-08

What exactly is the parameter e (event) and why pass it to JavaScript functions?

问题Well,whenIlearnedJavaScript,allthebooksandInternetarticlesIreadshowedcodepassingaparameteretofunctionsthathandleJavaScriptevents,suchasthecodeblockbelow:funct...

代码星球 ·2021-02-08

What happens in an async method

https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/concepts/async/task-asynchronous-programming-model#BKMK_WhatHappensUnderstandinganAsyncMethodTh...

代码星球 ·2021-02-08