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How do you structure a basic HTML document?
StartwithtodeclareHTML5;2.Useastherootelement;3.Includewith,,and;4.Addforvisiblecontent;thecompletestructureformsavalidHTMLdocument.
Aug 04, 2025 am 02:20 AM
Building Custom, Reusable Hooks in React
AgoodcustomhookinReactisareusablefunctionstartingwith"use"thatencapsulatesstatefullogicforsharingacrosscomponents;itshouldsolveacommonproblem,beflexiblethroughparameterslikeuseFetch(url,options),returnaconsistentstructuresuchasanarrayorobje
Aug 03, 2025 pm 04:51 PM
What is the purpose of the rel attribute in a link tag in HTML?
rel="stylesheet"linksCSSfilesforstylingthepage;2.rel="preload"hintstopreloadcriticalresourcesforperformance;3.rel="icon"setsthewebsite’sfavicon;4.rel="alternate"providesalternateversionslikeRSSorprint;5.rel=&qu
Aug 03, 2025 pm 04:50 PM
How do you create a scrollbar in an HTML element?
To create a scrollbar of HTML element, you need to control overflow behavior through CSS: 1. Set a fixed height for the element and use the overflow attribute, such as overflow:auto displays the scrollbar when needed, and overflow:scroll is always displayed; 2. You can control vertical or horizontal scrolling alone, such as overflow-y:auto only scroll vertically; 3. You can customize the scrollbar style through pseudo-elements such as::-webkit-scrollbar. Basic beautification can be achieved in Firefox, and finally, by limiting the container size and allowing the content to overflow, you can achieve the scrolling effect.
Aug 03, 2025 pm 04:48 PM
How do you embed audio and video in HTML5?
HTML5providesnativesupportforembeddingaudioandvideousingtheandelements.1.Foraudio,usethetagwithelementstospecifymultipleformatslikeMP3andOGG,ensuringbroaderbrowsercompatibility,andincludethecontrolsattributeforplaybackcontrols.2.Forvideo,usethetagwit
Aug 03, 2025 pm 04:47 PM
How do you iterate over an object in JavaScript?
You can traverse the properties or values of JavaScript objects through various methods, because the object itself cannot be iterated directly with for...of. 1. Use the for...in loop combined with hasOwnProperty() to traverse its own enumerable property keys; 2. Use Object.keys() to pair for...of iterable the keys of the object itself; 3. Use Object.values() to pair for...of to get the values of all its own enumerable properties; 4. Use Object.entries() to pair for...of or forEach() to get key-value pairs at the same time; 5. Use Object.getOwnProperty
Aug 03, 2025 pm 04:46 PM
How do you create a table in HTML?
To create an HTML table, you need to use, , and tags, 1. For containers, 2. Define rows, 3. Define header cells, 4. Define data cells, and you can also use, and organize structures to improve readability and accessibility, and add borders through CSS or use colspan and rows to achieve cross-column and rows, and finally build a clear and complete table.
Aug 03, 2025 pm 04:30 PM
Migrating a Create React App to Vite
Migrating to Vite improves the development experience, for reasons including faster startup speeds, near-instant hot updates, better TypeScript support, and modern toolchains. 2. Migration steps: Install Vite and plug-in, create vite.config.js configuration file, adjust index.html and remove script tags, ensure that the entry file uses react-dom/client, update the scripts in package.json to dev, build and preview commands, change the environment variable prefix from REACT_APP_ to VITE_ and access it through import.meta.env, retain static resources in the public directory and use absolutely
Aug 03, 2025 pm 04:23 PM
How do you use setTimeout in JavaScript?
setTimeoutisusedtoexecuteafunctiononceafteraspecifieddelayinmillisecondswithoutblockingtherestofthecode;1.Itrunsthefunctiononlyonceafterthedelay;2.Youcanpassanamedfunction,anarrowfunction,orincludearguments;3.UseclearTimeoutwiththereturnedtimerIDtoca
Aug 03, 2025 pm 04:12 PM
From Redux to Pinia: Modern State Management in Vue
Piniaisthemodern,Vue-nativesolutionthatsimplifiesstatemanagementbyeliminatingRedux’sboilerplate.1)Itremovestheaction-reducersplit,allowingdirectstatemutations.2)Storesareautomaticallyreactive,withnoneedformanualconnectingordispatching.3)Actionsarecal
Aug 03, 2025 pm 03:50 PM
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
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
What is the difference between the id and class attributes in HTML?
The id attribute must be unique in HTML documents and can only be used for a single element; the class attribute can be shared by multiple elements. 2. Use id to identify unique elements, such as page anchors or specific styles, and use class to apply the same style or behavior to multiple elements. 3. Use # to select id in CSS and use . to select class; getElementById() in JavaScript gets a single element through a unique id, and getElementsByClassName() returns a set of elements with the same class. Summary: id is used for unique identification, class is used for reuse, and both can be used at the same time, just like the difference between the ID number and the job name.
Aug 03, 2025 pm 02:58 PM
How do you specify different language versions of a webpage in HTML?
Tospecifydifferentlanguageversionsofawebpage,usethehreflangattributeintagswithinthesection;2.Eachlanguageorregionalversionmustreferenceallothers,includingitself,tocreatebidirectionallinks;3.UseISO639-1languagecodes(e.g.,en,es)andoptionallyISO3166-1Al
Aug 03, 2025 pm 02:54 PM
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