Country State Dropdown dependency - AngularJS
 Its been some time since I have written in this blog. Its mainly because of my work schedule. Cutting short personal note, let me introduce the problem.   I have a plain HTML page which has two drop-down which is my interest in the article. The first one is Country, second one is Region/State.      My requirement is to change the Regions when Country is selected/changed. I was trying to implementing this on my own, rather than trying to use features provided by AngularJS. Then with this stackoverflow  thread, I was blown out. It was as simple as a filter clause in ng-options. I had never ever dreamed of anything simpler.   Of course in my JSON, region data has a country id which made this approach simpler. Let me share my JSON.   {      "states": [      {              "id": 1,              "code": "KAR",              "name": "Karnataka",            ...