take_while_il {lenses} | R Documentation |
Conditional head lens
Description
A lens into the elements from the beginning of a structure until the last element that satisfies a predicate.
Usage
take_while_il(f)
Arguments
f |
the predicate (logical) function |
Details
This lens is illegal because set-view
is not satisfied,
multiple runs of the same lens will reference potentially
different elements.
[Package lenses version 0.0.3 Index]