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How to select a child element with the first class name item through CSS?
How to select a child element with the first class name item through CSS?
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Vue realizes marquee/text scrolling effect
Apr 07, 2025 pm 10:51 PM
Implement marquee/text scrolling effects in Vue, using CSS animations or third-party libraries. This article introduces how to use CSS animation: create scroll text and wrap text with <div>. Define CSS animations and set overflow: hidden, width, and animation. Define keyframes, set transform: translateX() at the beginning and end of the animation. Adjust animation properties such as duration, scroll speed, and direction.
What method is used to convert strings into objects in Vue.js?
Apr 07, 2025 pm 09:39 PM
When converting strings to objects in Vue.js, JSON.parse() is preferred for standard JSON strings. For non-standard JSON strings, the string can be processed by using regular expressions and reduce methods according to the format or decoded URL-encoded. Select the appropriate method according to the string format and pay attention to security and encoding issues to avoid bugs.
How to use bootstrap in vue
Apr 07, 2025 pm 11:33 PM
Using Bootstrap in Vue.js is divided into five steps: Install Bootstrap. Import Bootstrap in main.js. Use the Bootstrap component directly in the template. Optional: Custom style. Optional: Use plug-ins.
What are the common solutions for Vue Axios &Network Error&
Apr 07, 2025 pm 09:51 PM
Common ways to solve Vue Axios "Network Error": Check network connections. Verify the API endpoint URL. Check CORS settings. Handle error response. Check the firewall or proxy. Adjustment request timed out. Check the JSON format. Update the Axios library.
Laravel's geospatial: Optimization of interactive maps and large amounts of data
Apr 08, 2025 pm 12:24 PM
Efficiently process 7 million records and create interactive maps with geospatial technology. This article explores how to efficiently process over 7 million records using Laravel and MySQL and convert them into interactive map visualizations. Initial challenge project requirements: Extract valuable insights using 7 million records in MySQL database. Many people first consider programming languages, but ignore the database itself: Can it meet the needs? Is data migration or structural adjustment required? Can MySQL withstand such a large data load? Preliminary analysis: Key filters and properties need to be identified. After analysis, it was found that only a few attributes were related to the solution. We verified the feasibility of the filter and set some restrictions to optimize the search. Map search based on city
How to introduce css in vue file
Apr 08, 2025 am 06:36 AM
Methods to introduce CSS into Vue files include: inline styles, scoped styles, external CSS, CSS preprocessors, and style bindings. The right method depends on the situation, such as inline styles suitable for small styles, scoped styles are used for component-specific styles, external CSS is suitable for large styles, CSS preprocessors provide advanced features, and style binding is used for dynamic styles.
How to solve mysql cannot be started
Apr 08, 2025 pm 02:21 PM
There are many reasons why MySQL startup fails, and it can be diagnosed by checking the error log. Common causes include port conflicts (check port occupancy and modify configuration), permission issues (check service running user permissions), configuration file errors (check parameter settings), data directory corruption (restore data or rebuild table space), InnoDB table space issues (check ibdata1 files), plug-in loading failure (check error log). When solving problems, you should analyze them based on the error log, find the root cause of the problem, and develop the habit of backing up data regularly to prevent and solve problems.
Vue and Element-UI cascaded drop-down box component packaging
Apr 07, 2025 pm 08:36 PM
The packaged Vue and Element-UI cascading pull-down box components are designed to achieve high customization, ease of maintenance, and excellent performance. Its core functions include: flexible data format processing, asynchronous loading support, customized rendering and error handling. During the packaging process, you need to pay attention to common errors and performance optimization, and follow the principles of code readability and maintainability to improve the reusability, scalability and integration of components.
