将项目推送到Json数组angularjs

I am new to angularjs. I am currently doing a mobile app with ionic (that's why I have to use angularjs). I have an array and I created a add form with a button so that I can add item in the array. I have created some dummy data first because I want to test it around. I am not sure how to implement an add button so that user can add the item to that array (tempData).I am new to angularjs. I am currently doing a m