How to remove an item from an array in AngularJS scope?

Question

Simple to-do list, but with a delete button on list page for each item:

Relevant template HTML:

Answer 1

For the the accepted answer of @Joseph Silber is not working, because indexOf returns -1. This is probably because Angular adds an hashkey, which is different for my $scope.items[0] and my item. I tried to resolve this with the angular.toJson() function, but it did not work :(

Ah, I found out the reason... I use a chunk method to create two columns in my table by watching my $scope.items. Sorry!