opt_unwrap {optional} | R Documentation |
Cast an optional object to its base type.
opt_unwrap(opt)
opt |
The optional variable to cast back |
Since an optional can be used the same way as its base type, there is no known scenario where this function might be useful.
The object wrapped in opt
.
NULL
if opt
is none
.
make_opt(), match_with()
a <- option(5)
class(a)
## [1] "optional"
a <- opt_unwrap(a)
class(a)
## [1] "numeric"