Web Front-end Programming Tutorials: Learn Web Front-end Online-php.cn

Article Tags

All
web3.0
- JS Tutorial
- HTML Tutorial
- CSS Tutorial
- H5 Tutorial
- Front-end Q&A
- PS Tutorial
- Bootstrap Tutorial
- Vue.js
- Unity
- ECharts
- Express framework
- JSON
- Promise
- regular expression
- less
- http
- edge
- chrome
Backend Development
- JS Tutorial
- HTML Tutorial
- CSS Tutorial
- H5 Tutorial
- Front-end Q&A
- PS Tutorial
- Bootstrap Tutorial
- Vue.js
- Unity
- ECharts
- Express framework
- JSON
- Promise
- regular expression
- less
- http
- edge
- chrome
Web Front-end
- JS Tutorial
- HTML Tutorial
- CSS Tutorial
- H5 Tutorial
- Front-end Q&A
- PS Tutorial
- Bootstrap Tutorial
- Vue.js
- Unity
- ECharts
- Express framework
- JSON
- Promise
- regular expression
- less
- http
- edge
- chrome
Database
- JS Tutorial
- HTML Tutorial
- CSS Tutorial
- H5 Tutorial
- Front-end Q&A
- PS Tutorial
- Bootstrap Tutorial
- Vue.js
- Unity
- ECharts
- Express framework
- JSON
- Promise
- regular expression
- less
- http
- edge
- chrome
Operation and Maintenance
- JS Tutorial
- HTML Tutorial
- CSS Tutorial
- H5 Tutorial
- Front-end Q&A
- PS Tutorial
- Bootstrap Tutorial
- Vue.js
- Unity
- ECharts
- Express framework
- JSON
- Promise
- regular expression
- less
- http
- edge
- chrome
Development Tools
- JS Tutorial
- HTML Tutorial
- CSS Tutorial
- H5 Tutorial
- Front-end Q&A
- PS Tutorial
- Bootstrap Tutorial
- Vue.js
- Unity
- ECharts
- Express framework
- JSON
- Promise
- regular expression
- less
- http
- edge
- chrome
PHP Framework
- JS Tutorial
- HTML Tutorial
- CSS Tutorial
- H5 Tutorial
- Front-end Q&A
- PS Tutorial
- Bootstrap Tutorial
- Vue.js
- Unity
- ECharts
- Express framework
- JSON
- Promise
- regular expression
- less
- http
- edge
- chrome
Common Problem
- JS Tutorial
- HTML Tutorial
- CSS Tutorial
- H5 Tutorial
- Front-end Q&A
- PS Tutorial
- Bootstrap Tutorial
- Vue.js
- Unity
- ECharts
- Express framework
- JSON
- Promise
- regular expression
- less
- http
- edge
- chrome
Other
- JS Tutorial
- HTML Tutorial
- CSS Tutorial
- H5 Tutorial
- Front-end Q&A
- PS Tutorial
- Bootstrap Tutorial
- Vue.js
- Unity
- ECharts
- Express framework
- JSON
- Promise
- regular expression
- less
- http
- edge
- chrome
Tech
- JS Tutorial
- HTML Tutorial
- CSS Tutorial
- H5 Tutorial
- Front-end Q&A
- PS Tutorial
- Bootstrap Tutorial
- Vue.js
- Unity
- ECharts
- Express framework
- JSON
- Promise
- regular expression
- less
- http
- edge
- chrome
CMS Tutorial
- JS Tutorial
- HTML Tutorial
- CSS Tutorial
- H5 Tutorial
- Front-end Q&A
- PS Tutorial
- Bootstrap Tutorial
- Vue.js
- Unity
- ECharts
- Express framework
- JSON
- Promise
- regular expression
- less
- http
- edge
- chrome
Java
- JS Tutorial
- HTML Tutorial
- CSS Tutorial
- H5 Tutorial
- Front-end Q&A
- PS Tutorial
- Bootstrap Tutorial
- Vue.js
- Unity
- ECharts
- Express framework
- JSON
- Promise
- regular expression
- less
- http
- edge
- chrome
System Tutorial
- JS Tutorial
- HTML Tutorial
- CSS Tutorial
- H5 Tutorial
- Front-end Q&A
- PS Tutorial
- Bootstrap Tutorial
- Vue.js
- Unity
- ECharts
- Express framework
- JSON
- Promise
- regular expression
- less
- http
- edge
- chrome
Computer Tutorials
- JS Tutorial
- HTML Tutorial
- CSS Tutorial
- H5 Tutorial
- Front-end Q&A
- PS Tutorial
- Bootstrap Tutorial
- Vue.js
- Unity
- ECharts
- Express framework
- JSON
- Promise
- regular expression
- less
- http
- edge
- chrome
Hardware Tutorial
- JS Tutorial
- HTML Tutorial
- CSS Tutorial
- H5 Tutorial
- Front-end Q&A
- PS Tutorial
- Bootstrap Tutorial
- Vue.js
- Unity
- ECharts
- Express framework
- JSON
- Promise
- regular expression
- less
- http
- edge
- chrome
Mobile Tutorial
- JS Tutorial
- HTML Tutorial
- CSS Tutorial
- H5 Tutorial
- Front-end Q&A
- PS Tutorial
- Bootstrap Tutorial
- Vue.js
- Unity
- ECharts
- Express framework
- JSON
- Promise
- regular expression
- less
- http
- edge
- chrome
Software Tutorial
- JS Tutorial
- HTML Tutorial
- CSS Tutorial
- H5 Tutorial
- Front-end Q&A
- PS Tutorial
- Bootstrap Tutorial
- Vue.js
- Unity
- ECharts
- Express framework
- JSON
- Promise
- regular expression
- less
- http
- edge
- chrome
Mobile Game Tutorial
- JS Tutorial
- HTML Tutorial
- CSS Tutorial
- H5 Tutorial
- Front-end Q&A
- PS Tutorial
- Bootstrap Tutorial
- Vue.js
- Unity
- ECharts
- Express framework
- JSON
- Promise
- regular expression
- less
- http
- edge
- chrome

Home

Technical Articles

Web Front-end

Vue.js vs. React: Community, Ecosystem, and Support

Vue.js and React each have their own advantages, and the choice should be based on project requirements and team technology stack. 1. Vue.js is community-friendly, providing rich learning resources, and the ecosystem includes official tools such as VueRouter, which are supported by the official team and the community. 2. The React community is biased towards enterprise applications, with a strong ecosystem, and supports provided by Facebook and its community, and has frequent updates.

Apr 27, 2025 am 12:24 AM

React Vue.js

Optimizing Performance with useState() in React Applications

useState()iscrucialforoptimizingReactappperformanceduetoitsimpactonre-rendersandupdates.Tooptimize:1)UseuseCallbacktomemoizefunctionsandpreventunnecessaryre-renders.2)EmployuseMemoforcachingexpensivecomputations.3)Breakstateintosmallervariablesformor

Apr 27, 2025 am 12:22 AM

React useState

The Future of Python and JavaScript: Trends and Predictions

The future trends of Python and JavaScript include: 1. Python will consolidate its position in the fields of scientific computing and AI, 2. JavaScript will promote the development of web technology, 3. Cross-platform development will become a hot topic, and 4. Performance optimization will be the focus. Both will continue to expand application scenarios in their respective fields and make more breakthroughs in performance.

Apr 27, 2025 am 12:21 AM

Python

Sharing State Between Components Using Context and useState()

Use Context and useState to share states because they simplify state management in large React applications. 1) Reduce propdrilling, 2) The code is clearer, 3) It is easier to manage global state. However, pay attention to performance overhead and debugging complexity. The rational use of Context and optimization technology can improve the efficiency and maintainability of the application.

Apr 27, 2025 am 12:19 AM

useState

The Impact of Incorrect Keys on React's Virtual DOM Updates

Using incorrect keys can cause performance issues and unexpected behavior in React applications. 1) The key is a unique identifier of the list item, helping React update the virtual DOM efficiently. 2) Using the same or non-unique key will cause list items to be reordered and component states to be lost. 3) Using stable and unique identifiers as keys can optimize performance and avoid full re-rendering. 4) Use tools such as ESLint to verify the correctness of the key. Proper use of keys ensures efficient and reliable React applications.

Apr 27, 2025 am 12:19 AM

Key错误影响

Photoshop: A Versatile Tool for Image Manipulation

Photoshop is so powerful in the field of image processing because of its versatility and intuitive operating interface. 1) It can handle various tasks from basic adjustment to complex synthesis, such as adjusting brightness and contrast. 2) Working based on layers and masks allows non-destructive editing. 3) Examples of usage include adjusting color balance and creating layer masks. 4) Common errors such as excessive editing can be avoided through the History panel. 5) Performance optimization suggestions include the use of smart objects and shortcut keys.

Apr 27, 2025 am 12:13 AM

图像处理

Understanding Keys in React: Optimizing List Rendering

InReact,keysareessentialforoptimizinglistrenderingperformancebyhelpingReacttrackchangesinlistitems.1)KeysenableefficientDOMupdatesbyidentifyingadded,changed,orremoveditems.2)UsinguniqueidentifierslikedatabaseIDsaskeys,ratherthanindices,preventsissues

Apr 27, 2025 am 12:13 AM

React

HTML5: The Standard and its Impact on Web Development

The core features of HTML5 include semantic tags, multimedia support, offline storage and local storage, and form enhancement. 1. Semantic tags such as, etc. to improve code readability and SEO effect. 2. Simplify multimedia embedding with labels. 3. Offline storage and local storage such as ApplicationCache and LocalStorage support network-free operation and data storage. 4. Form enhancement introduces new input types and verification properties to simplify processing and verification.

Apr 27, 2025 am 12:12 AM

HTML5

Common Mistakes to Avoid When Working with useState() in React

useState is often misused in React. 1. Misunderstand the working mechanism of useState: the status will not be updated immediately after setState. 2. Error update status: SetState in function form should be used. 3. Overuse useState: Use props if necessary. 4. Ignore the dependency array of useEffect: the dependency array needs to be updated when the state changes. 5. Performance considerations: Batch updates to states and simplified state structures can improve performance. Correct understanding and use of useState can improve code efficiency and maintainability.

Apr 27, 2025 am 12:08 AM

React useState

From Zero to Bootstrap: Getting Started Quickly

Bootstrap is an open source front-end framework based on HTML, CSS and JavaScript, designed to help developers quickly build responsive websites. Its design philosophy is "mobile first", providing a wealth of predefined components and tools, such as grid systems, buttons, forms, navigation bars, etc., simplifying the front-end development process, improving development efficiency, and ensuring the responsiveness and consistency of the website. Using Bootstrap can start with a simple page and gradually add advanced components such as cards and modal boxes. Best practices for optimizing performance include customizing Bootstrap, using CDNs, and avoiding overuse of class names.

Apr 27, 2025 am 12:07 AM

快速入门

What are self-closing tags? Give an example.

Self-closingtagsinHTMLandXMLaretagsthatclosethemselveswithoutneedingaseparateclosingtag,simplifyingmarkupstructureandenhancingcodingefficiency.1)TheyareessentialinXMLforelementswithoutcontent,ensuringwell-formeddocuments.2)InHTML5,usageisflexiblebutr

Apr 27, 2025 am 12:04 AM

自闭合标签 HTML标签

React's SEO-Friendly Nature: Improving Search Engine Visibility

Yes,ReactapplicationscanbeSEO-friendlywithproperstrategies.1)Useserver-siderendering(SSR)withtoolslikeNext.jstogeneratefullHTMLforindexing.2)Implementstaticsitegeneration(SSG)forcontent-heavysitestopre-renderpagesatbuildtime.3)Ensureuniquetitlesandme

Apr 26, 2025 am 12:27 AM

React SEO

React's Performance Bottlenecks: Identifying and Optimizing Slow Components

React performance bottlenecks are mainly caused by inefficient rendering, unnecessary re-rendering and calculation of component internal heavy weight. 1) Use ReactDevTools to locate slow components and apply React.memo optimization. 2) Optimize useEffect to ensure that it only runs when necessary. 3) Use useMemo and useCallback for memory processing. 4) Split the large component into small components. 5) For big data lists, use virtual scrolling technology to optimize rendering. Through these methods, the performance of React applications can be significantly improved.

Apr 26, 2025 am 12:25 AM

组件优化 React性能

Alternatives to React: Exploring Other JavaScript UI Libraries and Frameworks

Someone might look for alternatives to React because of performance issues, learning curves, or exploring different UI development methods. 1) Vue.js is praised for its ease of integration and mild learning curve, suitable for small and large applications. 2) Angular is developed by Google and is suitable for large applications, with a powerful type system and dependency injection. 3) Svelte provides excellent performance and simplicity by compiling it into efficient JavaScript at build time, but its ecosystem is still growing. When choosing alternatives, they should be determined based on project needs, team experience and project size.

Apr 26, 2025 am 12:24 AM