jquery implements secondary linkage drop-down selection based on layui

layui provides a variety of methods for obtaining form data, including directly obtaining all field data of the form, obtaining the value of a single form element, using the formAPI.getVal() method to obtain the specified field value, serializing the form data and using it as an AJAX request parameter, and listening Form submission event gets data.

Layui login page jump setting steps: Add jump code: Add judgment in the login form submit button click event, and jump to the specified page through window.location.href after successful login. Modify the form configuration: add a hidden input field to the form element of lay-filter="login", with the name "redirect" and the value being the target page address.

The difference between layui and Vue is mainly reflected in functions and concerns. Layui focuses on rapid development of UI elements and provides prefabricated components to simplify page construction; Vue is a full-stack framework that focuses on data binding, component development and state management, and is more suitable for building complex applications. Layui is easy to learn and suitable for quickly building pages; Vue has a steep learning curve but helps build scalable and easy-to-maintain applications. Depending on the project needs and developer skill level, the appropriate framework can be selected.

Adaptive layout can be achieved by using the responsive layout function of the layui framework. The steps include: referencing the layui framework. Define an adaptive layout container and set the layui-container class. Use responsive breakpoints (xs/sm/md/lg) to hide elements under specific breakpoints. Specify element width using the grid system (layui-col-). Create spacing via offset (layui-offset-). Use responsive utilities (layui-invisible/show/block/inline) to control the visibility of elements and how they appear.

The layui framework is a JavaScript-based front-end framework that provides a set of easy-to-use UI components and tools to help developers quickly build responsive web applications. Its features include: modular, lightweight, responsive, and has complete documentation and community support. layui is widely used in the development of management backend systems, e-commerce websites, and mobile applications. The advantages are quick start-up, improved efficiency, and easy maintenance. The disadvantages are poor customization and slow technology updates.

layui is a front-end UI framework that provides a wealth of UI components, tools and functions to help developers quickly build modern, responsive and interactive web applications. Its features include: flexible and lightweight, modular design, rich components, Powerful tools and easy customization. It is widely used in the development of various web applications, including management systems, e-commerce platforms, content management systems, social networks and mobile applications.

The method of using layui to transmit data is as follows: Use Ajax: Create the request object, set the request parameters (URL, method, data), and process the response. Use built-in methods: Simplify data transfer using built-in methods such as $.post, $.get, $.postJSON, or $.getJSON.

Layui is based on HTML, CSS, JavaScript, jQuery, Less and Grunt technologies and offers cross-browser compatibility, high customizability, ease of use, rich components and active community support.