Employees $id('JOHNCENA') Employee First Name John Last Name Cena Employee First Name Jeff Last Name Mendel Boss $refid('JOHNCENA') Team $ref() # points to root Employees Count $count($ref(0)) All First Names $$map($ref(0), \(row)$key(row, 'First Name')) $id('Blog') Blog Entry Title Wow this sure is a blog Body Ta dee dum Entry Title Another entry Body Yep that's a lot of entries Blog View $$map($refid('Blog'), \(entry)$html('

', $key(entry, 'Title'), '

', $key(entry, 'Body'), '

')) Length \(x, y)$sqrt($sum($mul(x, x), $mul(y, y))) Computes the length of a vector $'Length'(5, 5)