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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)
現在,網頁應用程式有多種客戶端儲存選項,但直到現在,缺少一個能將二進制資料組織成真正的資料夾層次結構的檔案輸入/輸出功能。隨著HTML5的出現,這一情況已經改變。這本書將教你如何為你的應用程式提供一個檔案系統,使它們能夠在使用者本地檔案系統的一個受限區域中創建、讀取和寫入檔案和資料夾。
作者Eric Bidelman是Google Chrome團隊的高級開發者計畫工程師,他提供了幾種使用HTML5檔案系統API的技術和完整的程式碼範例。
本書內容包括:
- 學習處理檔案和資料夾的常見操作
- 瞭解HTML5的儲存使用案例和安全考慮事項
- 瞭解可用的儲存選項,包括臨時、永久和無限制
- 寫入文字或將資料附加到現有使用者檔案
- 通過訪問使用者硬碟將檔案導入應用程式
- 獲取使用檔案系統、Blob或資料URL的技巧
- 在Web Worker上下文中使用HTML5檔案系統API的同步版本的技術