What is a single file component (SFC)?

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.

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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

How to create and use Vue plugin? The Vue plugin is an object with the install method to add global functionality to the entire application. 1. The basic structure of the plug-in is to define an object containing the install method, which receives app and options parameters; 2. In the install method, you can add global methods, register components or instructions, inject mixed in, etc.; 3. Use app.use() to register the plug-in and pass in options; 4. Get plug-in methods through this.$method or Composition API in the component; 5. It is recommended to keep a single responsibility, support configuration parameters, avoid naming conflicts, and improve compatibility with Composition API; 6

The steps to install VueRouter are as follows: 1. Confirm that the project is created based on Vue3 and check the vue version in package.json; 2. Run npminstallvue-router@4 or yarnaddvue-router@4 in the terminal to install dependencies; 3. Create router.js file and configure the routing table, and initialize the routing instance using createRouter and createWebHistory; 4. Introduce and mount the routing instance in main.js to the application; 5. Note that the page needs to be included and used for navigation, and configure the server to support history mode during deployment.