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How to use keepalive in vue

How to use keepalive in vue

Keepalives in Vue are used to cache component instances to maintain their state. They can be used by wrapping Keepalive components around child components. Key benefits include: state preservation, performance optimization, and data recovery. Keepalive supports include, exclude, max, and deactivationHook attributes, and is suitable for scenarios where state needs to be maintained, performance optimized, or user input restored.

May 07, 2024 pm 12:27 PM
vue 组件渲染
What does prop in vue mean?

What does prop in vue mean?

Prop is a property in Vue.js that passes parent component data or methods to child components. It allows child components to access the state of the parent component. Prop is defined in the child component and can use data types such as Boolean values, strings, numbers, arrays, objects or functions. Required and default values ​​can be set, but modifying the Prop value in the child component will not affect the original value of the parent component. , because Props are all one-way bound. The advantages of Props include increased component reusability, ease of understanding and maintenance, and reduced parent-child component coupling.

May 07, 2024 pm 12:24 PM
vue
What does the props option in vue do?

What does the props option in vue do?

In Vue, the props option is used to pass data from parent components to child components. Its main function is to achieve data sharing, maintain one-way data flow, and improve code readability. Declare the properties to be passed in the parent component and receive these properties in the child component. In addition, the props option also supports type verification, which can specify attribute types, default values, and verification rules to ensure data consistency and security.

May 07, 2024 pm 12:18 PM
vue 代码可读性
How to introduce non-es6js files into vue

How to introduce non-es6js files into vue

Introducing non-ES6 JS files into Vue can be achieved by creating and setting the src attribute to point to the script tag of the file path, and setting the type attribute to "text/javascript". If your non-ES6 JS file exports a CommonJS module, you need to assign it to the export default object using Object.assign.

May 07, 2024 pm 12:15 PM
vue
How to use less in vue

How to use less in vue

Use LESS in Vue.js to enhance your CSS writing experience. Requires less-loader and less dependencies to be installed. Use the <style lang="less"> block to write LESS styles in your .vue file. LESS provides features such as variables, nested rules, mixins, and operations. But be aware that LESS has been gradually deprecated and it is recommended to use alternatives such as Sass or PostCSS.

May 07, 2024 pm 12:09 PM
css vue
Can less files in vue introduce data?

Can less files in vue introduce data?

Yes, Less files in Vue can introduce data through CSS variables and Less mixins: create a JSON file containing data. Import JSON files using the @import rule. Access JSON data using CSS variables or Less mixins.

May 07, 2024 pm 12:06 PM
css vue
How to use less style in vue

How to use less style in vue

Using LESS styles in Vue improves code maintainability and extensibility, specifically: Install the LESS compiler and LESS language plugin. Use lang="less" in the .vue file to specify the LESS style. Configure webpack in the Vue.js configuration file to compile LESS to CSS. The main advantages of the LESS style include: Using variables enhances maintainability and reusability. Use blending to simplify the use of repeating styles. Use functions to easily handle color and style manipulation.

May 07, 2024 pm 12:03 PM
css vue
How to bind events to tags in vue

How to bind events to tags in vue

In Vue.js, you can bind event listeners to labels through the v-on directive. The syntax is v-on:<event-name>="handler", which supports specifying event names, event modifiers and dynamic event names.

May 07, 2024 am 11:57 AM
vue 事件冒泡
What does dom mean in vue?

What does dom mean in vue?

The DOM in Vue is a hierarchy of HTML elements for a web page, which allows developers to programmatically interact with these elements. Through the DOM, developers can manipulate HTML structure, bind data, respond to events, and perform DOM operations such as getting and setting element attributes, styles, and content.

May 07, 2024 am 11:54 AM
vue
The principles and differences between hash and history in vue

The principles and differences between hash and history in vue

The difference between routing modes in Vue: Hash: uses URL fragments to manage state, does not send HTTP requests, is not SEO friendly, has faster navigation, and allows cross-domain. History: Use browser history API to manage state, send HTTP requests, SEO friendly, update browser history, restrict cross-domain.

May 07, 2024 am 11:51 AM
vue
Which one should be used for hash and history in vue?

Which one should be used for hash and history in vue?

Vue routing mode selection criteria: Compatibility: Hash mode is more compatible with older browsers. Refresh behavior: Hash mode refresh does not reset routing state. Server configuration: The server needs to support HTML5 History API, otherwise Hash mode is used. SEO: History mode is more conducive to SEO. Bookmarks: History mode bookmarks are normal, Hash mode bookmarks may be invalid. Recommendation: History mode is better in most cases, Hash mode is a fallback option in restricted situations.

May 07, 2024 am 11:48 AM
vue
How to bind data in setup in vue

How to bind data in setup in vue

There are three ways to bind Setup data in Vue: 1. refs: use the ref attribute to bind element references to setup variables; 2. v-model: two-way binding of input element values ​​and setup variables; 3. Custom attributes: create attributes And bound to the setup variable, access the value using this.attributeName.

May 07, 2024 am 11:45 AM
vue
Why does vfor need to add key in vue?

Why does vfor need to add key in vue?

In Vue.js, v-for list items require a unique key attribute to track identification, optimize performance when data changes, and correctly move elements across lists. By setting a unique key, such as the ID or name of a list item, Vue can efficiently update the virtual DOM and avoid unnecessary re-rendering.

May 07, 2024 am 11:39 AM
vue
How to use foreach in vue

How to use foreach in vue

The v-for directive is used to iterate over an array or object and create corresponding DOM elements for each element. When iterating over an array, the syntax is v-for="item in items", where item is an alias for the current element. When traversing an object, the syntax is v-for="(value, key) in object", where key and value are the key and value respectively. The v-for directive also supports other features such as :key, v-bind, v-if, and v-else.

May 07, 2024 am 11:36 AM
vue 键值对

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