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instance method

Logger#<<

<<(msg)

# File tmp/rubies/ruby-3.2.0/lib/logger.rb, line 682
def <<(msg)
  @logdev&.write(msg)
end

Writes the given msg to the log with no formatting; returns the number of characters written, or nil if no log device exists:

Example

logger = Logger.new($stdout)
logger << 'My message.' # => 10

Output:

My message.

See also .new #add #close also in 3.4 · 3.3 · 3.1 · 3.0