city ​​city letter classification selection plug-in

10 Apr 2023

In front-end development, province and city linkage selection is a very basic and commonly used function. In order to improve user experience and improve data validity, developers need to implement this function through certain technical means. Among them, jquery is a very commonly used JavaScript library. This article will introduce how to use jquery to realize the linkage selection function of provinces and municipalities. 1. Demand analysis 1. Three drop-down boxes are needed, representing provinces, cities, and districts respectively; 2. After selecting a province, the city drop-down box will be dynamically loaded according to the province information, and the corresponding district drop-down box will also be loaded according to the province information.

16 May 2016

This article mainly introduces the JS method to simply implement the city's secondary linkage selection plug-in, involving JavaScript implementation of select traversal and setting skills. It is very simple and practical. Friends who need it can refer to it.

04 Jul 2023

uni-app is a cross-platform development framework based on Vue.js. We often need to implement the function of selecting provinces and cities during development. This article will introduce how to use some components and plug-ins of uni-app to realize the province and city selection function. First, we need to prepare a data source for provinces and cities. Commonly used data sources can be JSON files or obtained from backend APIs. Here we demonstrate it in the form of a JSON file. Create a JSON file. We create a data.json file to store the province and city data.

01 Jul 2023

Steps to implement the multi-level classification function in PHP Developer City With the rapid development of e-commerce, more and more companies choose to use PHP to develop their own mall websites. The multi-level classification function in the mall website is an extremely important and common function point. This article will introduce the steps to implement the multi-level classification function in the PHP developer mall. Database design First, we need to design the database table structure to store classified data. Generally speaking, we will design a table named "categories" to store classification information. The table can contain

02 Jul 2023

Steps to Implement the Product Selection and Recommendation Function in PHP Developer Mall With the rapid development of the e-commerce industry, mall websites are paying more and more attention to the personalized recommendation function, and achieve accurate product recommendations by analyzing user behavior data. As a back-end language widely used in the e-commerce field, PHP has become a need for many developers to implement product selection and recommendation functions. This article will introduce the specific steps and precautions to implement the product selection and recommendation function in the PHP Developer City. Data collection and processing: The implementation of the product selection and recommendation function requires

22 May 2023

With the continuous development of the e-commerce market, the methods of selling goods are also constantly updated and iterated. Among them, flash sale activities have become an important part of e-commerce platform marketing, which can attract more users' attention and increase sales. The core of the flash sale activity is an efficient and stable flash sale plug-in. This article will introduce how to use the flash sale plug-in of PHP Developer City. 1. Understand the principle of flash sale plug-in Before developing the flash sale plug-in, we need to understand the principle of flash sale first. When conducting flash sales activities, a time period is usually set, and users can only

16 Oct 2023

Edited by: Zhao Boyuan Event site picture source: Provided by Xinjin District, Chengdu In the post-Universiade era, Chengdu’s event camp continues to move forward. On the afternoon of October 14, the two-day ENJOYAI 2023 Global Youth Artificial Intelligence Competition Chengdu City Selection and 2023 World Robot Competition Youth Robot Design Competition ENJOYAI competition selection officially opened at the Xinjin Tianfu Agricultural Expo Park in Chengdu. ENJOYAI is initiated and hosted by the Federation of Global Youth Artificial Intelligence. It is an artificial intelligence popularization activity for children and teenagers aged 3-22 around the world. It combines robot design, programming and control

26 Apr 2023

In front-end development, we often need to use jQuery to handle some interactive effects and animation effects, such as animation effects when the mouse is hovering, animation effects when the page is loading, etc. But sometimes we need to set a delay time so that these effects can be better expressed. So, how does jQuery set a delay? This article will introduce this issue in detail. 1. Delay method in jQuery In jQuery, delay effect can be easily achieved by using the delay() method. The delay() method can be used

16 May 2016

jQuery UI CSS Framework is a style framework in jQuery UI. You can use jQuery Theme roller to generate the css style effects you want. We can use some frameworks of jQuery UI to develop plug-ins based on jQuery UI CSS Framework effects.