Aren’t you tired of flattening your code to avoid repeated computation:
val x = longComputation()
ls map { y =>
(x, y)
}
when you’d rather write
ls map { y =>
(
longComputation(),
y
)
}
because it’s more compact, but if you had an anti-lambda you could write
ls map { y =>
(
<= y ( longComputation() ),
y
)
}
where the anti-lambda <= y ( ... ) cancels out the parameter y making longComputation() constant and evaluated only once (essentially making it part of the closure’s local environment).
