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Learning Command Pattern with TypeScript: Design Patterns in Practice with TypeScript (Null-Origin)
Null-Origin
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「Undo/Redo機能を実装したいけど、どこから手をつければ…」エディタにUndo/Redo機能を追加したい操作履歴を記録して再実行やロールバックしたい
Commandパターン
で、操作をオブジェクト化し実行・取り消し・履歴管理を実現できます。
本書の内容テキストエディタのUndo/Redoを題材に、挿入・削除・置換のカプセル化と履歴管理を実装します。Deno + TypeScriptで完全動作するサンプル付き。
対象読者Undo/Redo機能の実装に悩んでいる方イベント駆動アーキテクチャを学びたい方
著者: Null-Origin
今すぐ始めましょう!
25 pages, Kindle Edition
Published March 14, 2026
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Null-Origin
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