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Home Technical Articles
How to fix slow Wi-Fi speeds on a Windows laptop

How to fix slow Wi-Fi speeds on a Windows laptop

First, confirm the root cause of the problem. 1. Use other devices to test the network speed. If it is slow, the problem will be in the router or service provider; 2. Restart the router and notebook to clear temporary faults; 3. Run the Windows Network Troubleshooting Tool to automatically fix the problem; 4. Update or reinstall the Wi-Fi driver in the Device Manager, or manually download the latest driver from the manufacturer's official website; 5. Disable the energy-saving mode of the Wi-Fi adapter in the Device Manager, and configure the network as "dedicated" and turn off the "Billing Connection by Traffic" in the system settings; 6. Try to connect to the 5GHz frequency band, log in to the router management interface to switch to the idle channel and enable the Wi-Fi6 or Ac standard; 7. Get close to the router, reduce obstacles and interference sources, and avoid soft surfaces blocking the antenna.

Aug 03, 2025 pm 03:25 PM
Effective Data Fetching Patterns in Vue.js

Effective Data Fetching Patterns in Vue.js

UseonMountedwithasync/awaitforsimple,one-timedatafetchingaftercomponentmount;2.Leveragetop-levelawaitinforsuspense-awarecomponentsthatrequiredeclarativeloadingstatesvia;3.CreatereusablecomposablefunctionslikeuseFetchtoencapsulatelogic,enablingmaintai

Aug 03, 2025 pm 03:24 PM
How to make an HTML page accessible

How to make an HTML page accessible

UsesemanticHTMLelementslike,,,,andtoprovideclearstructureandmeaning.2.Providetextalternativessuchasaltattributesforimages,captionsforvideos,andtranscriptsforaudiocontent.3.Ensurekeyboardaccessibilitybymakingallinteractiveelementsfocusable,maintaining

Aug 03, 2025 pm 03:23 PM
What is the role of WAI-ARIA attributes in HTML5?

What is the role of WAI-ARIA attributes in HTML5?

WAI-ARIAattributesenhancewebaccessibilitybyprovidingsemanticroles,states,andpropertiestodynamiccontent.1.Theydefineelements’purposeswithroleslikerole="navigation",role="button",androle="alert".2.Theymanagedynamicstatesus

Aug 03, 2025 pm 03:22 PM
Optimizing Large-Scale Array Population in High-Performance PHP

Optimizing Large-Scale Array Population in High-Performance PHP

To optimize the fill performance of large-scale arrays in PHP, memory usage must be reduced and execution efficiency must be improved. 1. Prioritize the use of generators rather than large arrays. By generating data one by one, the memory usage is reduced from O(n) to O(1), which is suitable for processing millions of rows of CSV or database records; 2. If the array size is known in PHP8, use array_fill to pre-fill null value to reduce the hash table rehash overhead, and it is only suitable for dense integer indexes; 3. Use $array[]=$value instead of array_push() when appending a single element to avoid function call overhead, and performance can be improved by 20-30%; 4. Passing arrays through references to prevent copying, especially in functions using &$target to avoid

Aug 03, 2025 pm 03:21 PM
PHP Add Array Items
How does a type implement an interface in Go?

How does a type implement an interface in Go?

InGo,atypeimplementsaninterfaceimplicitlybyprovidingallrequiredmethodswithoutexplicitdeclaration.1.Interfacesaresatisfiedautomaticallywhenatypehasmethodsmatchingtheinterface'ssignatureexactly.2.No"implements"keywordisneeded—ducktypingisused

Aug 03, 2025 pm 03:19 PM
go Interface implementation
What are the benefits of using Golang for microservices?

What are the benefits of using Golang for microservices?

Goisidealformicroservicesduetoitshighperformance,concurrencymodel,simplicity,fastcompilation,cloud-nativesupport,strongtooling,andmaintainability:1.Itdeliverslowlatencyandhighthroughputwithefficientbinariesandminimalruntimeoverhead;2.Goroutinesandcha

Aug 03, 2025 pm 03:18 PM
What is the purpose of the save() and restore() methods in the HTML5 canvas?

What is the purpose of the save() and restore() methods in the HTML5 canvas?

save() and restore() are used to save and restore Canvas drawing state. 1. save() pushes the current state (such as style, transformation, transparency, etc.) into the stack; 2. restore() pops up and restores the recently saved state to avoid style pollution; 3. It is suitable for isolating temporary changes such as rotation and transparency to ensure that subsequent drawing is not affected; 4. Support nesting use and follows the principle of back-in-first-out; 5. It should be used in pairs to ensure the clean and controllable drawing of complex graphics, so as to safely realize independent drawing of complex graphics.

Aug 03, 2025 pm 03:16 PM
How do you add a click event listener in JavaScript?

How do you add a click event listener in JavaScript?

It is standard practice to add a click event listener using the addEventListener() method. 1. First select the element through getElementById() or querySelector(), 2. Then call addEventListener('click',handler) to bind the event handler function. You can use anonymous functions, arrow functions or named functions for subsequent removal. 3. Ensure that the script is executed after the DOM is loaded. It can be implemented by placing script at the bottom of the body or using the DOMContentLoaded event. This method will not overwrite existing events and supports multiple listeners. It is better than inline onclick attributes and is a modern J

Aug 03, 2025 pm 03:15 PM
event listening
Windows 10 not detecting external hard drive

Windows 10 not detecting external hard drive

CheckthebasicsbytryingadifferentUSBcable,port,andtestingonanothercomputerwhilelisteningforunusualsounds;2.UseDiskManagementtoassignadriveletterorcheckforinitializationissues;3.UpdateorreinstalldriversviaDeviceManagerandruntheHardwareandDevicestrouble

Aug 03, 2025 pm 03:14 PM
What is garbage collection in Go and how does it work?

What is garbage collection in Go and how does it work?

Go's garbage collector is a concurrent three-color mark removal algorithm that can automatically manage memory and reduce the risks brought by manual management. 1. Use the three-color marking method: start from the root object and divide the object into three categories: white, gray and black. Gray means that it has been accessed but the sub-object has not been processed, black means that it has been processed, and the white object is finally recycled. 2. Use write barrier technology: Ensure that during the concurrent marking process, the modified pointer will not cause the reachable object to be accidentally recycled. 3. Concurrent execution in the cleaning stage: gradually recycle the white object memory and return it to the allocator to reduce the performance impact. GC is triggered when the heap grows to the set ratio. The default GOGC=100 is started when the heap is doubled, and the balanced memory and CPU can be adjusted. Its features include low pause time, high throughput, adjustable parameters and scheduler set

Aug 03, 2025 pm 03:13 PM
go Garbage collection
What is a data- attribute in HTML5?

What is a data- attribute in HTML5?

The data-* attribute is a method used in HTML5 to store custom private data in HTML elements, and does not affect the page layout or behavior; its name begins with data- followed by a custom lowercase name, such as data-user-id and data-category; it can be used to pass data from HTML to JavaScript, make HTML more semantic, and avoid abuse of standard attributes; it can be accessed through the dataset attribute of JavaScript, and the attribute name is automatically converted to camel, such as data-user-id corresponding to dataset.userId; it can also be used in CSS through attribute selectors, such as div[data-category=&qu

Aug 03, 2025 pm 03:12 PM
What is the purpose of the base tag in HTML?

What is the purpose of the base tag in HTML?

ThetagsetsadefaultbaseURLandtargetforallrelativelinksonapage;1.Whenusingthehrefattribute,itdefinestherootURLforresolvingrelativepaths,soresourceslikeimagesandscriptsloadfromthespecifiedbase;2.Thetargetattributesetsthedefaultopeningcontextforlinks,suc

Aug 03, 2025 pm 03:11 PM
Understanding PHP's Pass-by-Reference: Performance and Pitfalls

Understanding PHP's Pass-by-Reference: Performance and Pitfalls

Pass-by-referenceinPHPdoesnotimproveperformancewithlargearraysorobjectsduetocopy-on-writeandobjecthandles,soitshouldnotbeusedforthatpurpose;1.Usepass-by-referenceonlywhenyouneedtomodifytheoriginalvariable,suchasswappingvaluesorreturningmultiplevalues

Aug 03, 2025 pm 03:10 PM
PHP Functions

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