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- How to write less in vue
- Using Less in Vue requires the following steps: 1. Install the Less compiler; 2. Configure lessOptions in vue.config.js and specify the Less file path; 3. Create a .less file; 4. Use lang=" in the Vue component less" specifies the style sheet language; 5. Compile Less, use npm run serve to develop, and npm run build to package.
- Vue.js 651 2024-05-09 15:06:17
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- The difference between href and :href in vue
- The difference between href and :href in Vue lies in the data binding method: href: static binding, directly assigning a string address. :href: Dynamic binding, using Vue expressions to bind responsive data or calculated properties to achieve dynamic updates.
- Vue.js 1483 2024-05-09 15:03:18
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- How to use the function function in vue
- The function function in Vue is used to define reusable component methods: define a method object methods and define the function function in it. Parameters can be added after the method name, separated by commas. You can use the return statement to return a value. Arrow functions can be used to simplify single-line functions. Computed properties and listeners are also methods used for specific scenarios.
- Vue.js 1077 2024-05-09 15:00:32
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- Usage of function and method in vue
- Both function and method in Vue.js are used to define methods, but their scope and behavior are different. Function is defined outside the component or instance and cannot access component data, while method is defined within the component or instance and can access component data and trigger reactive updates. 1. function purpose: general function, does not involve component data. 2. Method purpose: component-specific functions or functions that need to access component data.
- Vue.js 950 2024-05-09 14:54:21
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- The role of onmounted in vue
- onMounted is a component mounting life cycle hook in Vue. Its function is to perform initialization operations after the component is mounted to the DOM, such as obtaining references to DOM elements, setting data, sending HTTP requests, registering event listeners, etc. It is only called once when the component is mounted. If you need to perform operations after the component is updated or before it is destroyed, you can use other lifecycle hooks.
- Vue.js 1371 2024-05-09 14:51:19
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- Usage rules of v-if in vue
- The v-if directive in Vue.js shows or hides elements based on a Boolean expression. The syntax is <div v-if="condition"></div>, but it does not remove event listeners and bindings. Compared to v-show, v-if deletes and recreates elements (potentially incurring a performance penalty), while v-show only modifies the display attribute (less performance overhead). For frequent condition switching, use v-show; for complex conditions, delayed rendering, or scenes that require immediate rendering of elements, use v-if.
- Vue.js 691 2024-05-09 14:48:19
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- What spacing should be used for statements in if brackets in Vue?
- There are two types of delimiters for statements within if brackets in Vue: English comma (,): The comma delimiter separates multiple statements into one unit, and each statement must end with a semicolon (;). Semicolon (;): The semicolon delimiter separates individual statements without requiring a semicolon at the end of the statement. It is recommended to use comma delimiters in most cases, while semicolon delimiters are only used in complex conditional expressions where multiple conditions need to be declared.
- Vue.js 520 2024-05-09 14:45:23
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- The role of keep-alive in vue
- The keep-alive directive in Vue is used to cache components to prevent them from being destroyed and recreated when switching routes. By caching components, keep-alive can improve performance, maintain component status, and optimize user experience. Applicable scenarios include components that need to cache data, components that need to maintain interactive state, and components that need to avoid performance degradation caused by frequent re-rendering. When used, reactive properties and methods need to be persisted, and asynchronous or functional components cannot be cached.
- Vue.js 931 2024-05-09 14:42:20
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- Common event modifiers in vue
- Common event modifiers in Vue are: .stop/.prevent: prevent the default operation. .capture: Capture the event and handle it before bubbling. .self: Fires the handler only on the event target. .once: Remove the handler after triggering once. .passive: Improves performance and does not block default operations. .enter: The handler is only triggered when the enter key is pressed.
- Vue.js 699 2024-05-09 14:39:17
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- What scenarios can event modifiers in vue be used for?
- Vue.js event modifiers are used to add specific behaviors, including: preventing default behavior (.prevent) stopping event bubbling (.stop) one-time event (.once) capturing event (.capture) passive event listening (.passive) Adaptive modifier (.self)Key modifier (.key)
- Vue.js 772 2024-05-09 14:33:18
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- Does minix in vue have cache?
- No, Minix in Vue does not have caching. Minix is a global state management library that requires the use of external caching libraries (such as vuex-cache or Vuex-persistedstate) to implement caching functions. These libraries can persist Minix state to local storage or other persistence layers.
- Vue.js 600 2024-05-09 14:27:14
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- The role of the watch option in vue
- The watch option in Vue.js monitors changes in computed properties or data and runs user-defined callback functions when changes occur, which can be used to update the UI, perform asynchronous tasks, and control component behavior.
- Vue.js 877 2024-05-09 14:24:18
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- What is the caching mechanism of keepalive in vue
- The keep-alive caching mechanism in Vue includes: caching the state and DOM of specific subcomponents, optimizing performance and retaining dynamic data. Caching is triggered when a parent component renders for the first time, when a child component is manually activated, and when a cached component is activated again. Cache objects are stored inside keep-alive components, independent of Vue instance state. Invalidation mechanisms include re-rendering of parent components without sub-components, explicit destruction of sub-components, and cache limit. The benefits of caching include performance improvements, dynamic data retention, and smooth page transitions.
- Vue.js 862 2024-05-09 14:18:19
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- What function type is used to declare components in vue
- The function type of the component declared in Vue.js is defineComponent(), which contains the following options: data: component data object props: component attributes template: component HTML template methods: component methods
- Vue.js 625 2024-05-09 14:09:18
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- The order of execution of created and data in vue
- In Vue, the created lifecycle hook function is executed after data. This order is very important to ensure that the data is available in the created hook function.
- Vue.js 479 2024-05-09 14:06:15
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