few years back I’ve created a post for cascaded dropdown using jquery ,php and mysql , when I was working on my first angular project I’ve got the same dependent dropdown situation.
in many projects we need dependent dropdown , like country , states and then cities . its working is same as in this demo .
but here instead of jquery we are using angular and for database you can create a webserivces in php or you can fetch data from json files stored locally.
instructions to setup the webservice can be found here
how to install cascaded dropdown angular
we are using the same webservice that we use in cascaded dropdown using php . you can replace or remove index.php .
now clone or download the project cascaded dropdown angular , once you download it you need to got to the project and run
after succefully installation , you need to configure the envirnment variable, to do that goto src/environments directory and change apiBaseUrl with your webservice url.
thats all now run