How to build a drop down dymic using ajax in Grails 3.0 -

how can build drop down dynamic load using ajax? example drop down of states execute method in onchange option load other drop down of cities. try use tag g:remotefunction not exist in version 3.0.

sorry bad english.

the g:remotefunction taglib grails 3 in ajax-tags plugin. maven artifact org.grails.plugins:ajax-tags:1.0.0