method

print

v1_8_6_287 - Show latest stable - 1 note - Class: Kernel

print(...) public

Prints each object in turn to $stdout. If the output field separator ($,) is not nil, its contents will appear between each field. If the output record separator ($\) is not nil, it will be appended to the output. If no arguments are given, prints $_. Objects that aren’t strings will be converted by calling their to_s method.

   print "cat", [1,2,3], 99, "\n"
   $, = ", "
   $\ = "\n"
   print "cat", [1,2,3], 99

produces:

   cat12399
   cat, 1, 2, 3, 99

Show source

/*
 *  call-seq:
 *     print(obj, ...)    => nil
 *  
 *  Prints each object in turn to <code>$stdout</code>. If the output
 *  field separator (<code>$,</code>) is not +nil+, its
 *  contents will appear between each field. If the output record
 *  separator (<code>$\\</code>) is not +nil+, it will be
 *  appended to the output. If no arguments are given, prints
 *  <code>$_</code>. Objects that aren't strings will be converted by
 *  calling their <code>to_s</code> method.
 *     
 *     print "cat", [1,2,3], 99, "\n"
 *     $, = ", "
 *     $\ = "\n"
 *     print "cat", [1,2,3], 99
 *     
 *  <em>produces:</em>
 *     
 *     cat12399
 *     cat, 1, 2, 3, 99
 */

static VALUE
rb_f_print(argc, argv)
    int argc;
    VALUE *argv;
{
    rb_io_print(argc, argv, rb_stdout);
    return Qnil;
}

October 11, 2010

0 thanks

output is buffered and will not appear until flush

Output is buffered on most operating systems. To override this behavior, force the stdout or other io to sync

STDOUT.sync = true

print

Related methods

output is buffered and will not appear until flush