id x = x
div ! id "bar" $ "Hello."Result:
<div id="bar">Hello.</div>
let x = x in RB.get xwill not work, but
>>> let x = RB.id x in RB.get x Falsedoes.
RB.get (RB.id r) === RB.get r
let x = x in RDB.get xwill not work, but
>>> let x = RDB.id x in RDB.get x Truedoes. | prop> RDB.get (RDB.id r) === RDB.get r