How can I denote which input fields have changed in AngularJS

Question

I\'m working on an edit form (user.html) that PUTs data to an API, but I\'d like to avoid PUTting all the data in the form. I\'d like to PUT just the changed items.

Answer 1

Building off ARN and TheSharpieOne's answers. If you are using underscore in your project you could take this approach for finding differences in arrays of objects.

function findDiff(original, edited){
    _.filter(original, function(obj){ return !_.findWhere(edited, obj); });
}