AmpersandJS/ampersandjs.com — pull request #32 by zefhemel (2014-06-26 13:56:07+00:00)
Title: Fix derived property example

Adding where `x` and `y` come from.

Initially I thought you guys did some weird eval magic (introducing `x` and `y` into scope), but looking at my scaffolded example app I see the `this` was simply missing. Phew.