Support for the Ruby 2.4 series has ended. See here for reference.
Scans STDIN for data matching format
. See IO#scanf
for details.
See Scanf
for details on creating a format string.
You will need to require 'scanf' to use Kernel#scanf
.
# File scanf.rb, line 773 def scanf(format, &b) #:doc: STDIN.scanf(format ,&b) end