Progression Handler: No Progress Report
handler_void(intrusiveness = 0, target = "void", enable = FALSE, ...)
(numeric) A non-negative scalar on how intrusive (disruptive) the reporter to the user.
(character vector) Specifies where progression updates are rendered.
(logical) If FALSE, then progress is not reported.
Additional arguments passed to make_progression_handler()
.
This progression handler gives not output - it is invisible and silent.
if (FALSE) { # \dontrun{
handlers(handler_void())
with_progress(y <- slow_sum(1:100))
print(y)
} # }