非标准
该特性是非标准的，请尽量不要在生产环境中使用它！
Note: These are not the same thing as standard JavaScript modules. See export and import to learn more about how to use standard modules.
JavaScript 代码模块用于具备不同权限的作用域之间的代码共享。例如，Firefox 可以使用模块，也可以通过扩展来使用模块，以避免重复代码。
话题总览
- 使用JavaScript代码模块
- 介绍如何使用JavaScript代码模块
- Component.utils.import
- 如何导入一个JavaScript的代码模块。
- Component.utils.unload
- 如何上传一个JavaScript的代码模块
- 代码片段: Module
- 如何使用模块代码的实例。
- Mozilla实验室的 JS Modules
- 本页面列出了JS模块的列表，以及下载链接和文档，扩展开发人员可以在代码中使用它们。
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Standard code modules
- ctypes.jsm
- Provides an interface that allows JavaScript code to call native libraries without requiring the development of an XPCOM component.
- FileUtils.jsm
- Provides helpers for dealing with files.
- Geometry.jsm
- Provides routines for performing basic geometric operations on points and rectangles.
- ISO8601DateUtils.jsm
- Provides routines to convert between JavaScript
Date objects and ISO 8601 date strings.
- Dict.jsm
- Provides an API for key/value pair dictionaries.
- NetUtil.jsm
- Provides helpful networking utility functions, including the ability to easily copy data from an input stream to an output stream asynchronously.
- PopupNotifications.jsm
- Provides an easy way to present non-modal notifications to users.
- openLocationLastURL.jsm
- Provides access to the last URL opened using the "Open Location" option in the File menu.
- DownloadLastDir.jsm
- Provides the path to the directory into which the last download occurred.
- PluralForm.jsm
- Provides an easy way to get the correct plural forms for the current locale, as well as ways to localize to a specific plural rule.
- Services.jsm
- Provides getters for conveniently obtaining access to commonly-used services.
- source-editor.jsm
- The Source Editor is used by developer tools such as the Style Editor; this interface implements the editor and lets you interact with it.
- XPCOMUtils.jsm
- Contains utilities for JavaScript components loaded by the JS component loader.
- PerfMeasurement.jsm
- Provides access to low-level hardware and OS performance measurement tools.
- AddonManager.jsm
- Interface to install, manage, and uninstall add-ons.
- AddonRepository.jsm
- Allows searching of the add-ons repository.
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