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instance method

Kernel#print

print(*objects) → nil

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

Equivalent to $stdout.print(*objects), this method is the straightforward way to write to $stdout.

Writes the given objects to $stdout; returns nil. Appends the output record separator $OUTPUT_RECORD_SEPARATOR $\), if it is not nil.

With argument objects given, for each object:

Converts via its method to_s if not a string.
Writes to stdout.
If not the last object, writes the output field separator $OUTPUT_FIELD_SEPARATOR ($, if it is not nil.

With default separators:

Example

objects = [0, 0.0, Rational(0, 1), Complex(0, 0), :zero, 'zero']
$OUTPUT_RECORD_SEPARATOR
$OUTPUT_FIELD_SEPARATOR
print(*objects)

Output:

nil
nil
00.00/10+0izerozero

With specified separators:

Example

$OUTPUT_RECORD_SEPARATOR = "\n"
$OUTPUT_FIELD_SEPARATOR = ','
print(*objects)

Output:

0,0.0,0/1,0+0i,zero,zero

With no argument given, writes the content of $_ (which is usually the most recent user input):

Example

gets  # Sets $_ to the most recent user input.
print # Prints $_.

See also #pretty_inspect #printf #pp #proc also in 4.1 · 4.0 · 3.4 · 3.3 · 3.1 · 3.0