Dow.rb
# ⢀⡴⠊⢉⡟⢿ IRB v1.18.0 - Ruby 4.0.3
# ⣎⣀⣴⡋⡟⣻ "copy expr" to copy the output to clipboard
# ⣟⣼⣱⣽⣟⣾ ~/work/YS124/YS124
DOW_JP = %w[日 月 火 水 木 金 土].map(&:freeze).freeze
#=> ["日", "月", "火", "水", "木", "金", "土"]
Ruby 4.0.3
# ⢀⡴⠊⢉⡟⢿ IRB v1.18.0 - Ruby 4.0.3
# ⣎⣀⣴⡋⡟⣻ "copy expr" to copy the output to clipboard
# ⣟⣼⣱⣽⣟⣾ ~/work/YS124/YS124
DOW_JP = %w[日 月 火 水 木 金 土].map(&:freeze).freeze
#=> ["日", "月", "火", "水", "木", "金", "土"]
Ruby 4.0.3