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- The function of render function in vue
- The render function in Vue.js is responsible for converting component data into virtual DOM, which can improve performance, enable templating, and support cross-platform. Specific functions include: 1. Generating virtual DOM; 2. Improving performance; 3. Implementing templates; 4. Supporting cross-platform.
- Vue.js 513 2024-05-09 19:06:19
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- What does async mean in vue
- Vue's async modifier is used to create asynchronous components or methods to achieve dynamic loading of components and execution of asynchronous operations to avoid blocking the main thread.
- Vue.js 768 2024-05-09 19:03:17
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- The relationship between the main page and the current page in vue
- In Vue SPA, the Main page is responsible for loading the main layout and navigation menu as the application entry point; the current page contains the application content and functions, and the specific page the user is browsing. The two interact through navigation menus, rendering, and routing. The Main page runs throughout the application life cycle, while the current page is created when the user accesses it and destroyed when the user leaves. They can share data via the Vuex or Vue event bus for smooth navigation and management of page state.
- Vue.js 453 2024-05-09 19:00:27
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- The role of main.js in vue
- main.js is the entry file of the Vue.js application, used to boot and configure the application. Its main functions include: creating a Vue root instance, mounting the application configuration, routing, introducing components, storing data and status, installing plug-ins, defining life cycle hooks
- Vue.js 532 2024-05-09 18:57:16
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- How to use map function in vue
- The Vue.js map function is a built-in higher-order function that creates a new array where each element is the transformed result of each element in the original array. The syntax is map(callbackFn), where callbackFn receives each element in the array as the first argument, optionally the index as the second argument, and returns a value. The map function does not change the original array.
- Vue.js 728 2024-05-09 18:54:20
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- The role of export default in vue
- Question: What is the role of export default in Vue? Detailed description: export default defines the default export of the component. When importing, components are automatically imported. Simplify the import process, improve clarity and prevent conflicts. Commonly used for exporting individual components, using both named and default exports, and registering global components.
- Vue.js 662 2024-05-09 18:48:20
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- What is the function of setup in vue
- The function of the setup function in Vue is to initialize component state and logic, including defining responsive data, methods and life cycle hooks. Replaces data(), methods(), computed(), and watch() options in the options API. Provide better performance through responsive handling. Supports Composition API for sharing and reusing logic. Improves testability because logic is separated from template code.
- Vue.js 588 2024-05-09 18:45:29
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- Where should the script tag in vue be placed?
- The script tag in Vue should be immediately inside the template element <template> to achieve tight coupling between logic and template and ensure the normal operation of the component.
- Vue.js 845 2024-05-09 18:42:16
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- The role of each life cycle in vue
- Vue provides lifecycle hooks to perform tasks during the component lifecycle. These hooks are triggered in order, including: beforeCreate: triggered before the component is instantiated. created: Triggered after the component instance is created. beforeMount: Triggered before the component is mounted to the DOM. mounted: Triggered after the component is mounted to the DOM. beforeUpdate: Triggered before component props or data change. updated: Triggered after the component is updated. beforeDestroy: Triggered before the component is destroyed. destroyed: Triggered after the component is destroyed.
- Vue.js 507 2024-05-09 18:36:19
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- What are hooks in vue
- Vue hooks are callback functions that perform actions on specific events or lifecycle stages. They include life cycle hooks (such as beforeCreate, mounted, beforeDestroy), event handling hooks (such as click, input, keydown) and custom hooks. Hooks enhance component control, respond to component life cycles, handle user interactions and improve component reusability. To use hooks, just define the hook function, execute the logic and return an optional value.
- Vue.js 777 2024-05-09 18:33:21
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- How to declare methods in mounted in vue
- How to declare methods in Vue.js mounted? As an object property, the component instance is accessed through this context; as a method option, contained in the methods object, the component instance is also accessed through this.
- Vue.js 671 2024-05-09 18:30:24
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- The difference between calculated properties and methods in vue
- In Vue.js, computed properties are used to calculate derived data, while methods are used to perform operations. Computed properties are the values of expressions, which are recalculated whenever the dependent data changes; methods are functions, which are only executed when called.
- Vue.js 977 2024-05-09 18:27:17
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- Can calculated properties in Vue have parameters?
- Computed properties in Vue can have parameters, which are used to customize calculation behavior and transfer data. The syntax is computedPropertyWithArgs(arg1, arg2) { }. Parameters can be passed when used in templates, but the parameters must be responsive and cannot modify the internal state. .
- Vue.js 422 2024-05-09 18:24:18
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- How to use $event in vue
- $event is the object used in Vue to pass event information, including the triggering element, event type, and methods to prevent default behavior. It allows components to easily access event details, prevents default behavior and enhances code readability.
- Vue.js 364 2024-05-09 18:15:23
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- How to introduce echarts in vue
- There are three ways to introduce ECharts into Vue.js: Install through npm Introduce through CDN Use the Vue ECharts plug-in Detailed steps: Create a chart container Introduce ECharts Initialize the chart instance Set chart options and data destroy chart instance (optional)
- Vue.js 578 2024-05-09 16:39:18
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