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- What does prop mean in vue
- Props in Vue.js are a communication mechanism that allow child components to receive data from parent components and modify this data. Prop defines the data types and default values that child components can receive. The advantages of Props include data encapsulation, data validation, and parent component control. When using Prop, the parent component passes data to the child component through the props attribute. The child component declares the Prop names and types it accepts through the props option, and uses this.foo to access the value of the Prop. Props can have primitive, array, object or function types and support specifying default values.
- Vue.js 834 2024-05-02 21:24:40
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- How to use props values in methods in vue
- In Vue, the steps to use props values in methods are as follows: Define props: Use the props option in the component options to define the properties to be used. Access props: In a method, use the this.props object to access the props property.
- Vue.js 483 2024-05-02 21:24:17
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- What do the three equal signs mean in Vue?
- The three equal signs (===) in Vue.js are strict equality operators, ensuring that values and data types are equal and return true. It is used for exact comparisons, preventing type conversion errors, especially when comparing Boolean values, reference types and avoiding type conversion errors.
- Vue.js 988 2024-05-02 21:21:49
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- How to use props in vue
- In Vue, props are used to pass data between components. Declare the props received by the child component in the parent component, use the props option in the child component to receive it, and use :prop-name="data" to pass data. Vue allows you to specify prop types to ensure the correctness of passed data, and you can use the default option to specify default values. The watch option can be used to monitor prop changes. Leverage props to facilitate communication and reuse between components.
- Vue.js 1054 2024-05-02 21:21:33
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- Binding principle of v-bind in vue
- The v-bind directive is used to bind JavaScript expressions to HTML attributes. It supports two binding methods: attribute binding (binding to HTML attributes) and class binding (binding to Boolean properties of HTML classes).
- Vue.js 705 2024-05-02 21:21:15
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- How many slots are there in vue?
- Three types of slots are provided in Vue to define content insertion points: 1. Default slot: Insert all default content without specified slots; 2. Named slot: Specify the content location by name to make the insertion more convenient Organizational; 3. Scope slot: Allows access to component data and methods within the slot, providing more advanced flexibility.
- Vue.js 1209 2024-05-02 21:18:50
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- How to wrap lines in virtual data in vue
- In Vue, you can use tags in virtual data to implement line breaks: define virtual data properties that contain strings. Use the v-html directive in the template and insert tags where line breaks are required.
- Vue.js 811 2024-05-02 21:18:37
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- Click events in vue occasionally fail to trigger for some reason
- The click event in Vue occasionally fails to trigger. Possible reasons: DOM delayed loading: binding the event in the mounted() hook. Event proxy: Use the .native modifier to bind events on child elements. Mutually exclusive clicks: Use the .once modifier to disable the anti-shake delay. CSS styles: Check element styles to make sure they are visible and clickable. Asynchronous update: Use the $nextTick() method to wait for the DOM to update before binding the event. Browser compatibility: Check browser compatibility to ensure click events are supported.
- Vue.js 1072 2024-05-02 21:18:20
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- How to introduce js files in vue
- There are four ways to introduce JS files in Vue: Use the import statement Use the require function Use CDN Use Webpack
- Vue.js 757 2024-05-02 21:15:56
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- Where to put the common js code in vue
- There are two places to store public JS code in Vue: main.js file: used to initialize Vue instances and set global configurations to ensure that public code is accessible in all components. JS files in the public/ directory: can be loaded into the page via CDN or server.
- Vue.js 913 2024-05-02 21:15:40
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- The role of query and params in vue
- In Vue routing, query is used to pass additional information that does not affect the page route, such as /products?page=2&sort=price; params is used to define the parameter part of the page route, such as /products/:id.
- Vue.js 542 2024-05-02 21:12:50
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- The difference between query and param in vue
- The difference between query and param in Vue.js is that query accesses the data in the URL query string (such as ?key=value), while param accesses the data in the URL segment (such as path/to/resource/:key/value). query can be updated dynamically, while param is reloaded on route navigation.
- Vue.js 1461 2024-05-02 21:12:34
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- How to bind events to tags in vue
- Use the v-on directive in Vue.js to bind label events. The steps are as follows: Select the label to which the event is to be bound. Use the v-on directive to specify the event type and how to handle the event. Specify the Vue method to call in the directive value.
- Vue.js 546 2024-05-02 21:12:17
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- The difference between v-if and v-show in vue
- The difference between v-if and v-show in Vue.js: v-if directly removes DOM elements, while v-show controls visibility through CSS without removing DOM. v-if is more performant, v-show is slightly less performant because it triggers CSS reflow. v-if triggers the element switching animation, v-show does not trigger the animation when switching back to visible. v-if is suitable for scenarios that require dynamic addition or removal of DOM, while v-show is suitable for scenarios that require frequent visibility switching but do not involve changes to the DOM structure.
- Vue.js 1132 2024-05-02 21:09:53
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- The meaning of v-on in vue
- In Vue.js, the v-on directive is used to listen to DOM events and handle callbacks. The specific implementation is: listen to DOM events (such as click, keyup) and execute the corresponding JavaScript functions or methods (via v-on:event="handler" ) supports event modifiers (such as @keyup.enter) and component events (such as @input) to simplify event processing, improve code reusability, and separate business logic and view logic.
- Vue.js 645 2024-05-02 21:09:35
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