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How to create a smooth scrolling anchor link with CSS?

How to create a smooth scrolling anchor link with CSS?

To achieve smooth scrolling anchor links, just use scroll-behavior:smooth in CSS; 1. Add html{scroll-behavior:smooth;} to the html element to enable global smooth scrolling; 2. Ensure that the href attribute of the anchor link points to the correct ID in the page; 3. If scrolling in a specific container, apply scroll-behavior:smooth to the container with fixed height and overflow; 4. The scroll offset of the target element can be adjusted through scroll-margin-top to avoid fixed head occlusion; this method does not require JavaScript, is compatible with modern browsers, and does not support IE.

Aug 02, 2025 am 11:43 AM
css anchor link
How to implement a comment system for a blog in Laravel?

How to implement a comment system for a blog in Laravel?

Create Comment model and migration and run migration; 2. Define corresponding relationships in Post, User and Comment models; 3. Add a comment form on the article details page; 4. Create CommentController and process comment submissions in the store method; 5. Register a comment submission route with authenticated middleware in the route; 6. Display all comments of the article on the page; 7. Optional enhancements include nested reply, Markdown support, anti-spam, auditing and real-time updates; 8. Pay attention to input filtering, CSRF protection and permission control to ensure system security. This comment system is implemented based on Laravel convention, supports authenticated users to post comments and is scalable.

Aug 02, 2025 am 11:42 AM
How to implement parent-child component communication in Vue

How to implement parent-child component communication in Vue

The parent component passes data to the child component through props, and the child component receives and uses it through props; 2. The child component triggers a custom event to send data to the parent component through $emit, and the parent component handles it through event listening; 3. Use v-model to realize two-way binding between parent and child components, which is essentially the syntax sugar of prop binding and event transmission. Always follow the principle of "props down, events up" to ensure predictability and maintainability of component communication.

Aug 02, 2025 am 11:40 AM
vue Component communication
Laptop keyboard not working but external one does

Laptop keyboard not working but external one does

CheckforphysicalorsoftwarelockslikeFnkeycombinationsorBIOSsettingsdisablingtheinternalkeyboard.2.Restartthelaptopwithouttheexternalkeyboardtoruleouttemporaryglitches.3.UpdateorreinstallkeyboarddriversviaDeviceManagerordownloadlatestdriversfromthemanu

Aug 02, 2025 am 11:39 AM
Keyboard failure 外接鍵盤
How to remove dangling Docker images?

How to remove dangling Docker images?

DanglingimagesareuntaggedlayersnotassociatedwithanycontainerandcanberemovedusingDocker’sbuilt-incommands.1.Usedockerimageprunetosafelyremovedanglingimagesafterconfirmation,oradd-ftoforceremovalwithoutprompt.2.Usedockerimageprune-atoalsoremoveallunuse

Aug 02, 2025 am 11:37 AM
docker mirror
What is an Immediately Invoked Function Expression (IIFE) in JavaScript?

What is an Immediately Invoked Function Expression (IIFE) in JavaScript?

AnIIFEisaJavaScriptfunctionthatexecutesimmediatelyupondefinitiontocreateisolatedscopeandpreventglobalnamespacepollution.2.Itworksbywrappingafunctioninparenthesestoturnitintoanexpression,theninvokingitwithasubsequentpairofparentheses.3.IIFEswereessent

Aug 02, 2025 am 11:36 AM
IIFE
the volume shadow copy service (vss) is not working on win server

the volume shadow copy service (vss) is not working on win server

First, confirm whether the VSS service is running normally. 1. Check and start key services such as VolumeShadowCopy, Microsoft SoftwareShadowCopyProvider, and ensure that its startup type is automatic; 2. Run the command prompt as an administrator and re-register VSS-related DLL components in turn, such as ole32.dll, vss_ps.dll, etc.; 3. Execute sfc/scannow and DISM/Online/Cleanup-Image/RestoreHealth to repair system files; 4. Use vssadminlistshadowstorage to check shadow storage space, which is necessary

Aug 02, 2025 am 11:35 AM
the win 11 right-click context menu is slow to appear

the win 11 right-click context menu is slow to appear

TheWindows11right-clickcontextmenuisslowmainlyduetothetwo-tiersystemthatloadslegacyWin32menuitemsuponclicking"Showmoreoptions,"andthisdelayisexacerbatedbythird-partyshellextensions,resourceconstraints,ordiskbottlenecks.2.Tospeeditup,firstco

Aug 02, 2025 am 11:34 AM
How to use volatile keyword in Java?

How to use volatile keyword in Java?

The volatile keyword is used to ensure that the read and write of variables occurs directly in main memory. 1. It ensures that variable modifications are immediately visible to all threads, and avoids threads reading expired values due to local cache; 2. It is suitable for scenarios such as flag bit control, double-check lock singletons, and ensures safe release of objects; 3. However, it does not guarantee the atomicity of composite operations. For example, AtomicInteger or synchronized is required for self-increase. Therefore, volatile is suitable for scenarios that require visibility but no atomicity, and cannot replace the synchronization mechanism. Its limitations must be clarified when using it.

Aug 02, 2025 am 11:33 AM
java volatile
how to fix 'the directory is not empty' error 0x80070091 on win

how to fix 'the directory is not empty' error 0x80070091 on win

Show hidden and system files to view and delete invisible content; 2. Use the command prompt with administrator permission to run the rd/s/q command to force delete the folder; 3. Check the file locking situation, close relevant programs or use ProcessExplorer to terminate the occupied process; 4. Obtain folder ownership and give full control permissions to solve the permission problem; 5. Enter safe mode to eliminate interference from background services and delete the folder; 6. As a last resort, use trusted third-party tools such as Unlocker and LockHunter to force unlock and delete. This error is usually caused by hidden, locked or protected files, and can be solved through command prompts in most cases.

Aug 02, 2025 am 11:32 AM
How to start an SEO business

How to start an SEO business

To start an SEO business, you must first identify the target customers and focus on segmented areas, such as local service providers or e-commerce; then learn the basics of SEO, including page optimization, technology optimization and keyword research, and then actively acquire customers through free audits, freelancing platforms and active marketing; finally establish a simplified workflow and formulate reasonable pricing. By gradually advancing according to this path, you can start and expand your SEO business.

Aug 02, 2025 am 11:31 AM
win 10 not saving my display brightness settings

win 10 not saving my display brightness settings

Checkpowerplansettingstoensurebrightnesslevelsforbatteryandplugged-inmodesaresetcorrectlyandconsistently.2.DisableadaptivebrightnessinSettingsorPowerOptionstopreventautomaticadjustments.3.UpdateorreinstalldisplaydriversviaDeviceManagerordownloadthela

Aug 02, 2025 am 11:30 AM
How can you loop through an array in JavaScript?

How can you loop through an array in JavaScript?

Useaforloopwhenyouneedperformanceorindexcontrol;2.Usefor...offorclean,readablevalueiteration,optionallywithentries()forindexaccess;3.UseforEach()toexecuteafunctiononeachelementwithaccesstovalue,index,andarray,butnoteitcannotbebrokenearly;4.Usewhilelo

Aug 02, 2025 am 11:29 AM
array
How to define the base URL for all relative URLs in an HTML page

How to define the base URL for all relative URLs in an HTML page

To define the base URL of all relative URLs in the HTML page, you need to use elements in part; 1. It will be placed in, so that all relative links are parsed based on the URL; 2. You can add the target="_blank" attribute to make all links open in the new tab page by default; 3. Note that each page can only have one tag and must be located in, the relative path in CSS is not affected by it, and relative requests from JavaScript may also need additional processing; 4. It is suitable for scenarios where the site is located in a subdirectory, a single page application or a server to generate HTML. All relative URLs are affected by it after setting, so you need to ensure that the base URL is correct.

Aug 02, 2025 am 11:28 AM
How to manage disk quotas on NTFS volumes in Windows

How to manage disk quotas on NTFS volumes in Windows

Enablequotamanagementinthedrive’sPropertiesundertheQuotatab,choosingtodenyspaceorlogeventswhenlimitsareexceeded,andsetdefaultlimits(e.g.,50GBlimitwith45GBwarning).2.Customizeindividualuserquotasbycreatingnewquotaentriesforspecificusers,assigningtailo

Aug 02, 2025 am 11:27 AM
How to check the health of a computer's battery

How to check the health of a computer's battery

OnWindows,generateabatteryreportusingCommandPromptwith"powercfg/batteryreport"toviewdesignvs.fullchargecapacityandcyclecount.2.OnmacOS,checkbatteryhealthviaSystemSettings>Battery>BatteryHealthorbyholdingOptionandclickingthemenubarbatt

Aug 02, 2025 am 11:26 AM
How to change the Apache port from 80 to 8080?

How to change the Apache port from 80 to 8080?

EdittheApacheconfigurationfile(e.g.,httpd.conforports.conf)andchange"Listen80"to"Listen8080".2.Updateallvirtualhostdirectivesfrom:80to:8080inrespectiveconfigurationfiles.3.SavethechangesandrestartApacheusingtheappropriatecommandfo

Aug 02, 2025 am 11:24 AM
apache port
win file explorer search not working correctly

win file explorer search not working correctly

RebuildthesearchindexviaIndexingOptionstofixsloworincompleteresults;2.RestarttheWindowsSearchserviceinservices.mscorviacommandnetstartwsearch;3.Runthebuilt-inSearchandIndexingTroubleshooterinSettingstoautomaticallyfixcommonissues;4.Clearsearchhistory

Aug 02, 2025 am 11:23 AM
How to specify the author of an HTML document?

How to specify the author of an HTML document?

To specify the author of an HTML document, you need to use a tag and set the name="author" attribute to place it in a section; 1. Use to define the author; 2. If there are multiple authors, you can use multiple tags or listed in a comma-separated content; 3. The tag must be located inside and cannot be placed in it; 4. Metadata will not be displayed on the page, but can be used for SEO and document management; 5. It can be used in combination with other meta tags such as description and keywords to enhance information integrity. This method complies with HTML standards and is widely supported.

Aug 02, 2025 am 11:22 AM
html author
How to change the color of the taskbar in Windows

How to change the color of the taskbar in Windows

Tochangethetaskbarcolor,gotoSettings>Personalization>Colors,selectCustomunderChooseyourcolor,pickanaccentcolor,andenabletheoptiontoshowitonthetaskbar,start,andactioncenterorwindowborders,whichwillapplythecolorimmediately.2.YoucanletWindowsautom

Aug 02, 2025 am 11:20 AM
task bar color
the win 11 emoji panel (win .) is not opening

the win 11 emoji panel (win .) is not opening

First, make sure to use the correct shortcut keys Win . or Win ; and make sure not in restricted applications or full-screen games; 2. End the "TextInputHost.exe" or "WindowsInputExperience" process through Task Manager to restart the text input service; 3. Run the keyboard troubleshooting tool to detect input problems; 4. Check "Personalization>Text Input" in settings to ensure that the "Show emoji panel when typing" is turned on; 5. Uninstall the keyboard device in Device Manager and restart to reinstall the driver; 6. Ensure that standard keyboard input methods such as "English (U.S.)-Keyboard" are enabled in language and locale settings and avoid possible interference input such as Microsoft IME

Aug 02, 2025 am 11:19 AM
win11 Emoji面板
What is the fundamental difference between a class and an object in Java?

What is the fundamental difference between a class and an object in Java?

Aclassisablueprint,whileanobjectisaninstanceofthatclass;1.Aclassdefinesfieldsandmethodsbutdoesn’toccupymemory.2.Anobjectiscreatedusingthenewkeyword,hasactualdata,andoccupiesmemory.3.Multipleobjectscanbecreatedfromoneclass.4.Youinteractwithobjects,not

Aug 02, 2025 am 11:18 AM
java 類與對象
why can't I group dates in an Excel pivot table

why can't I group dates in an Excel pivot table

Ensuredatesarerecognizedasactualdates,nottext,byusingTexttoColumnsorDATEVALUEtoconvertthem.2.Removeblankornon-dateentriesfromthedatecolumntoallowgrouping.3.UsearegularExceltableinsteadofPowerPivotifgroupingisdisabledduetostructuredreferences.4.Placet

Aug 02, 2025 am 11:17 AM
excel 透視表
How to Back Up and Restore a MySQL Database?

How to Back Up and Restore a MySQL Database?

TobackupaMySQLdatabase,usemysqldumpwiththesyntaxmysqldump-u[username]-p[database_name]>backup_file.sql,whichcreatesaSQLfilecontainingallnecessarycommandstorecreatethedatabase,andincludeoptionslike--databases,--all-databases,or--routinesasneeded;al

Aug 02, 2025 am 11:15 AM
mysql Backup and restore
How to handle OS signals (like SIGTERM) in Go?

How to handle OS signals (like SIGTERM) in Go?

Go programs handle SIGTERM to achieve elegant exits, ensuring resource release and task ending. Use the os/signal package to listen for signals and pass them through channels, and implement cleaning logic in conjunction with context. 1. Create a channel and register the signal of interest with signal.Notify; 2. Receive the signal individually and trigger cancel the context; 3. The main goroutine waits for the context to complete and perform cleaning; 4. Notes include calling signal.Stop in time, the channel capacity is at least 1, and controlling the exit time in combination with the context timeout mechanism. In actual projects, a unified shutdown is always encapsulated.

Aug 02, 2025 am 11:14 AM
go signal processing
python getattr example

python getattr example

The getattr function is used to dynamically obtain object properties or methods to avoid throwing exceptions when the properties do not exist. 1. You can directly obtain the object attribute value, such as getattr(p,'name') returns "Alice"; 2. If the default value is provided when the attribute does not exist, return the value, such as getattr(p,'gender','Unknown') returns "Unknown"; 3. You can dynamically obtain and call methods, such as getattr(calc,'add')(3,4) returns 7; 4. It is often used in combination with user input or configuration, and it is necessary to check whether the method exists to ensure safety; in short, getattr

Aug 02, 2025 am 11:13 AM
How to use Smart Folders in Finder on a Mac?

How to use Smart Folders in Finder on a Mac?

ASmartFolderisasavedsearchthatdynamicallydisplaysfilesmatchingspecificcriteriawithoutmovingthemfromtheiroriginallocations.Tocreateone,openFinder,pressCommand F,setsearchcriterialikeKind,DateModified,orTagsusingthe" "button,combinemultipleco

Aug 02, 2025 am 11:12 AM
Why is my Windows not saving my display settings?

Why is my Windows not saving my display settings?

UpdateorreinstallgraphicsdriversviaDeviceManagerorthemanufacturer’swebsitetoresolvedriver-relatedissues.2.Setaprimarydisplay,arrangemonitorsproperlyinDisplaysettings,andavoidusingWin Pshortcutstomaintainconsistentmulti-monitorconfigurations.3.Disable

Aug 02, 2025 am 11:10 AM
windows display setting
How to fix an Ethernet adapter that keeps disconnecting in Windows

How to fix an Ethernet adapter that keeps disconnecting in Windows

First,checkthephysicalconnectionbyreseatingorreplacingtheEthernetcableandtestingonanotherdevice;2.DisablepowersavingfortheEthernetadapterinDeviceManagertopreventWindowsfromturningitoff;3.Update,rollback,orreinstallthenetworkdriverviaDeviceManagerorth

Aug 02, 2025 am 11:09 AM
microsoft edge keeps redirecting searches

microsoft edge keeps redirecting searches

CheckyourdefaultsearchengineinEdgesettingsandsetittoyourpreferredoption.2.Removeunwantedorsuspiciousextensionsfromthebrowser.3.RunamalwarescanusingWindowsSecurityandMalwarebytestodetectandremovehijackers.4.ResetEdgesettingstodefaulttoclearpersistentc

Aug 02, 2025 am 11:07 AM