If you are a Sublime Text user and would like to have Ionic autocomplete/snippets, you can install the following packages:
Ionic snippets: https://packagecontrol.io/packages/Ionic%20Snippets
Ionic Framework Snippets: https://packagecontrol.io/packages/Ionic%20Framework%20Snippets
Ionic Framework Extended Autocomplete: https://packagecontrol.io/packages/Ionic%20Framework%20Extended%20Autocomplete