title: Handling Large Forms -- Data Binding or Update Changed Fields?
body: <p>I am creating a ticketing system and have several LARGE forms (it is built as a SharePoint App but that isn't germane to my question because I am using REST).</p>
  
  <p>Since any form entered can also be edited, is it best practice to continue to use data binding and have to harvest ALL of the fields before submitting or could I somehow just determine which fields where changed and only update those?</p>
  
  <p>I am just learning about Angular Forms and all of the examples have 2 or 3 fields. I have one form that has 58 fields which is a lot of <code>form.lastName = $scope.lastName;</code> coding.</p>