Ruby ã®å®šæ•°ã‚„freeze ã®æ‰±ã„æ–¹ãŒé›£ã—ã„ :: by and for engineersSep 22, 2015 Ruby ã®å®šæ•°ã¯ãƒŸãƒ¥ãƒ¼ã‚¿ãƒ–ルã®ãŸã‚ã€ç›®ç«‹ãŸãªã„ãƒã‚°ã‚’埋ã‚込むå¯èƒ½æ€§ãŒã‚る。 Object#freeze を使ã†ã¨ã‚ªãƒ–ジェクトをイミュータブル（状態変更ä¸å¯ï¼‰ã«ã§ãる。 Ruby ã®å®šæ•°Ruby 以外ã®è¨€èªžã§ã¯å†ä»£å…¥ã•ã›ãªã„å ´åˆãŒã‚ã‚‹ãŒã€Ruby ã®å®šæ•°ã¯ Warning を出ã—ã¤ã¤ã‚‚å†ä»£å…¥ã§ãる。 irb(main):001:0> CONST = "constant string" => "constant string" irb(main):002:0> CONST = "overwrite!" (irb):2: warning: already initialized constant CONST (irb):1: warning: previous definition of CONST was here => "overwrite!"
Rubyã§å®šæ•°ã‚’扱ã†å ´åˆã¯freezeã™ã‚‹ã¹ã - Qiita
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