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商品描述
Several client-side storage options are available to web applications, but one area that's been lacking until now is file I/O—the ability to organize binary data into a true hierarchy of folders. That has changed with the advent of HTML5. With this book, you'll learn how to provide your applications with a file system that enables them to create, read, and write files and folders in a sandboxed section of the user's local filesystem.
Author Eric Bidelman, a Senior Developer Programs Engineer on the Google Chrome team, provides several techniques and complete code examples for working with the HTML5 Filesystem API.
- Learn common operations for working with files and directories
- Become familiar with HTML5's storage use cases and security considerations
- Understand the storage options available, including temporary, persistent, and unlimited
- Write text or append data to an existing user file
- Import files into your application by accessing a user's hard drive
- Get techniques for using a file with filesystem, blob, or data URLs
- Use the synchronous version of the HTML5 Filesystem API within a Web Worker context
商品描述(中文翻譯)
幾種客戶端儲存選項可供網頁應用程式使用,但直到現在,文件 I/O(即將二進位資料組織成真正的資料夾層級的能力)一直是個缺乏的領域。隨著 HTML5 的出現,這一點已經改變。透過本書,您將學習如何為您的應用程式提供一個檔案系統,使其能夠在用戶本地檔案系統的沙盒區域中創建、讀取和寫入檔案和資料夾。
作者 Eric Bidelman 是 Google Chrome 團隊的資深開發者計畫工程師,他提供了多種技術和完整的程式碼範例,以便與 HTML5 Filesystem API 進行互動。
- 學習處理檔案和目錄的常見操作
- 熟悉 HTML5 的儲存使用案例和安全考量
- 了解可用的儲存選項,包括臨時、持久和無限制
- 寫入文本或將資料附加到現有的用戶檔案
- 通過訪問用戶的硬碟將檔案導入您的應用程式
- 獲取使用檔案與檔案系統、blob 或資料 URL 的技術
- 在 Web Worker 環境中使用 HTML5 Filesystem API 的同步版本