Province, city and county plug-in PCASClass.js

16 May 2016

This article mainly introduces the implementation of simple three-level linkage effects of provinces, cities and counties in js, and analyzes the specific steps and related implementation techniques of JavaScript to achieve the three-level linkage effects of provinces, cities and counties in the form of a complete example. Friends in need can refer to the following

31 Mar 2024

The place of birth generally requires filling in the province or municipality directly under the Central Government, and does not directly fill in the county-level city or county. The specific filling method is as follows: Born in a provincial city or municipality directly under the Central Government: fill in the name of the city. Birth in a county-level city or county: fill in the upper-level administrative district (province or municipality) of the county-level city.

16 May 2016

Just like when choosing an address for shopping, the city list is dynamically loaded through the selected province, and the county list is dynamically loaded through the selected city, so that the three-level linkage of provinces, cities and counties can be achieved. The following uses native JavaScript to implement this function. What is needed Friends, please refer to it

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.

01 Oct 2017

Introduce the linked json file in components import ProvinceData from '../../../../../json/area.json'; define the corresponding variable in this.state constructor(props){ super(props ); this.state = { active: 'male',

16 May 2016

This article mainly introduces the method and example sharing of writing practical province and city selectors in JavaScript. It is very good and recommended to friends who have the same needs.

27 Dec 2021

How to implement province and city query in PHP: 1. Design a data table; 2. Find the corresponding parent_id according to the query id; 3. Implement province through codes such as "function GetCityInfo(searstr, cityselect) {...}" Just search the city.

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.

11 Dec 2020

Below, the Laravel framework tutorial column will introduce to you the method of obtaining province and city names based on IP. I hope it will be helpful to friends in need! To obtain geolocation based on IP, I tried laravel's toann/geoip package, but it was not very accurate. There are also Baidu API calls to obtain geographical information...