The progress of Vue3 over Vue2: better server-side isomorphism

Building a Vue component library requires designing the structure around the business scenario and following the complete process of development, testing and release. 1. The structural design should be classified according to functional modules, including basic components, layout components and business components; 2. Use SCSS or CSS variables to unify the theme and style; 3. Unify the naming specifications and introduce ESLint and Prettier to ensure the consistent code style; 4. Display the usage of components on the supporting document site; 5. Use Vite and other tools to package as NPM packages and configure rollupOptions; 6. Follow the semver specification to manage versions and changelogs when publishing.

Vue3 has improved in many key aspects compared to Vue2. 1.Composition API provides a more flexible logical organization method, allowing centralized management of related logic, while still supporting Vue2's Options API; 2. Better performance and smaller package size, the core library is reduced by about 30%, the rendering speed is faster and supports better tree shake optimization; 3. The responsive system uses ES6Proxy to solve the problem of unable to automatically track attribute addition and deletion in Vue2, making the responsive mechanism more natural and consistent; 4. Built-in better support for TypeScript, support multiple node fragments and custom renderer API, improving flexibility and future adaptability. Overall, Vue3 is a smooth upgrade to Vue2,

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Deploying Vue applications to production environments requires optimization of performance, ensuring stability and improving loading speed. 1. Use VueCLI or Vite to build a production version, generate a dist directory and set the correct environment variables; 2. If you use VueRouter's history mode, you need to configure the server to fallback to index.html; 3. Deploy the dist directory to Nginx/Apache, Netlify/Vercel or combine CDN acceleration; 4. Enable Gzip compression and browser caching strategies to optimize loading; 5. Implement lazy loading components, introduce UI libraries on demand, enable HTTPS, prevent XSS attacks, add CSP headers, and restrict third-party SDK domain names to enhance security.

v-bind is used in Vue.js to dynamically bind one or more attributes or components to expressions. It enables dynamic updates by keeping DOM properties synchronized with Vue instance data. Common usages include binding src, href, class and style attributes, such as using to implement dynamic updates of image sources; dynamically switch classes through: class="{active:isActive}"; using: style="{color:textColor}" to set inline style; and can also pass objects to bind multiple attributes at the same time, such as v-bind="{id:myId}"; when value is required

The life cycle hook of the Vue component is used to execute code at a specific stage. 1.created: Called immediately after the component is created, suitable for initializing data; 2.mounted: Called after the component is mounted to the DOM, suitable for operating the DOM or loading external resources; 3.updated: Called when the data update causes the component to be re-rendered, suitable for responding to data changes; 4.beforeUnmount: Called before the component is uninstalled, suitable for cleaning event listening or timer to prevent memory leakage. These hooks help developers accurately control component behavior and optimize performance.

The main way to access the store in the Vue3Composition API is to useStore() or directly call the Pinia defined store. 1. When using Vuex4, you need to import the useStore and call it in setup(). After obtaining the store instance, you can access state, dispatch, etc.; 2. When using Pinia, you can import and call it directly after defining the store, without usingStore; 3. Access the store outside the setup(). Vuex needs to export the store instance and reference it, and Pinia can call useXxxStore() anywhere; 4. Common questions include checking sto

TeleportinVue3allowsrenderingacomponent'sHTMLinadifferentpartoftheDOMwhilemaintainingnormaldataflow.1.Itsolvesissueslikemodals,tooltips,anddropdownsbeingclippedorhavingz-indexproblemsbymovingthemtoaspecifiedlocationsuchasbodyoraspecificelementlike#mo