{
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    "title": "IRBでRubyの文字列処理を試す",
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    "currentness": "VERIFIED_AS_OF",
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    "requirements": [
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      "導入する配布元と実行対象を確認する",
      "対応Rubyを用意し、実行する版とproject条件を確認します。"
    ],
    "suitable_for": "IRBでRubyの文字列処理を試すという目的を、この利用経路で短く試したい場面。",
    "unsuitable_for": "環境ごとの版やlibrary差を無確認で持ち込む用途。",
    "purpose": "IRBでRubyの文字列処理を試す",
    "composition": "Ruby",
    "shortest_path": [
      "公式配布のRubyとIRBを用意する",
      "IRBを起動し、小さな文字列の式を入力する",
      "式と返された結果を照合する"
    ],
    "verification": "入力した式と返値を確認し、ファイル処理と混同しません。",
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