method opened
Documentation for method opened
assembled from the following types:
class IO::CatHandle
From IO::CatHandle
(IO::CatHandle) method opened
Defined as:
method opened(IO::CatHandle: --> Bool)
Returns True
if the invocant has any source handles, False
otherwise.
say IO::CatHandle.new .opened; # OUTPUT: «False»say IO::CatHandle.new().opened; # OUTPUT: «True»(my = 'foo'.IO).spurt: "A\nB\nC";with IO::CatHandle.new:
class IO::Handle
From IO::Handle
(IO::Handle) method opened
Defined as:
method opened(IO::Handle: --> Bool)
Returns True
if the handle is open, False
otherwise.