Quick reference for efficient coding
Ref. https://docs.ruby-lang.org/ja/latest/library/logger.html
require 'logger'
#=> true
logger = Logger.new(STDOUT)
#=>
#<Logger:0x00007f7f0fb4a308
puts "Level WARN"
Level WARN
#=> nil
logger.level = Logger::WARN # <= change level
#=> 2
logger.warn("Nothing to do!") # output
W, [2024-10-10T15:57:36.742160 #2535] WARN -- : Nothing to do!
#=> true
logger.info("Program started") # none
#=> true
logger.debug("Created logger") # none
#=> true
Executed with Ruby 3.3.5