Regional three-level linkage
Regional three-level linkage
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07 Apr 2025
Using Element-UI's el-cascader component can facilitate three-level linkage, but data structure is the key. The best practice is to flatten arrays, each object contains value, label, and children attributes, pointing to child nodes. When loading data asynchronously, send requests to obtain the next level of data according to the selected value in the handleChange method, and update options data to ensure the integrity of the data structure. Pay attention to common errors such as confusing data structure, asynchronous data loading failures, and untimely data updates. Optimized performance can be done using virtual lists, cached data, and load on demand. Clear data structures, good code style and error handling are key, which helps avoid pitfalls and improve code maintainability.

07 Apr 2025
Composition API implements Element-UI multi-level linkage mainly uses ref, reactive and computerized to manage data, and functions to handle data changes to realize data-driven view updates. The key is to dynamically calculate the subordinate options based on the superior selection and reset the subordinate selection through the function to ensure the correctness of the linkage.

01 Mar 2025
10 cool jQuery menu special effects plug-ins to improve website user experience! We have shared many jQuery navigation menu plugins, and now we bring you 10 more amazing jQuery menu effects plugins. Enjoy it! Related readings: - 10 dazzling jQuery navigation menus - 15 excellent jQuery navigation menus Right-click menu This plugin is very easy to use and compact, allowing you to create right-click menus. Source Code Demo 2. jQuery Multi-level Menu – FX CSS Menu with Submenu 100% CSS menu, visual effects provided by jQuery. Only use Javascript to implement special effects. Fully compatible with cross-browser, package

07 Apr 2025
How to use Element-UI in Vue to implement multi-stage linkage drop-down boxes? Use multiple El-Select components to bind data through v-model and use logic to control dynamic changes in options. Use a recursive function to efficiently generate and update the option list, dynamically update the options for subsequent drop-down boxes based on the selection results. Pay attention to the design of the data structure. A clear data structure can simplify the code logic. Considering performance issues when the data volume is large, use tree structure or virtual scrolling technology to optimize rendering. Handle errors to avoid program crashes. Pay attention to the readability and maintainability of the code, use meaningful variable names, add comments, and split the code into small, reusable functions.

04 Apr 2025
In Three.js, the customer has put forward a challenging requirement: to realize the linkage between three-dimensional models and CAD drawings and highlighting...

26 Feb 2025
jQuery animation effect tutorial: Say goodbye to Flash animation and embrace the era of jQuery animation! In the past, animation effects on websites usually rely on Flash. But now, with jQuery, you can easily create various animation effects. The following are some jQuery animation effects tutorials to help you start your journey of painting! Related readings: 10 CSS3 and jQuery loading animation solutions 3D JavaScript animation—three.js JQuery animation feed display imitating Foursquare This tutorial will show you how to easily create an RSS scrolling subtitle effect using jQuery. Source Code Demo jQue

10 Mar 2025
Ten amazing jQuery image effects plugins to inject fashion into your website! With these jQuery image effects plugins, you can easily convert ordinary images on your website, enhance image effects, create galleries, scrollers, and make your website look new! Image segmentation effects combined with CSS and jQuery This tutorial will create an image segmentation effect. It's similar to a sliding door effect, where the image slides left or right, showing the text behind it, but the difference is that the effect looks like the image is split in half, one moves to the left and the other moves to the right. Source jQuery Image Distortion Script ImageWarp adds interesting twist effects to selected images on the page

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jQuery $(document).ready and UpdatePanels: A Refined LookWhen utilizing jQuery to apply mouseover effects to elements within an UpdatePanel, the...

07 Mar 2025
10 magical jQuery text special effects plugins to make your website stand out! jQuery is not only used for menus and animation effects. With jQuery, you can also create attractive text effects and cleverly use text to communicate effectively with users. Through this collection, you can create text gradients, text fly-in effects, text glows, and more. Enjoy it! Codename Rainbows We use some JavaScript and CSS magic to apply a two-color gradient for any text. Shadows and highlights can also be applied. This is especially effective in large websites or dynamic content, as it is impractical to create images for each instance in these cases. source jQuer


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