bitovi/canjs — pull request #325 by schovi (2013-03-20 19:56:31+00:00)
Title: Allow to pass an array index to removeAttr in Observe and Observe.List

With this you can pass arrays into removeAttr method
o = new can.Observe({array:[{nested: "yes we can!"}]})
o.removeAttr('array.0.nested') // -> "yes we can!"
o.attr('array.0.nested') // -> undefined