Deft JS 增强了 Ext JS 和 Sencha Touch 的 API，提供额外的构建块用以支持大的开发团队快速开发企业级应用，利用最佳实践和良好的模式实现工业化应用。

Goals

• Flexibility
  • Coordinates dynamic assembly of object dependencies based on a configurable IoC container.
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• Approachability
  • Builds on familiar Ext JS API syntax conventions for ‘pay-as-you-go’ complexity.
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  • Simplicity
    • Eliminates boilerplate code in favor of the simplest expression of developer intent.
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    • Testability
      • Promotes loose coupling through class annotation driven dependency injection.
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      • Extensibility
        • Leverages the advanced class system provided by Ext JS and Sencha Touch.
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        • Reusability
          • Enables business layer code reuse between Ext JS and Sencha Touch applications.
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          Features

          IoC Container

          • Provides class annotation-driven dependency injection.
          • Maps dependencies by user-defined identifiers.
          • Resolves dependencies by class instance, factory function or value.
          • Supports singleton and prototype resolution of class instance and factory function dependencies.
          • Offers eager and lazy instantiation of dependencies.
          • Injects dependencies into Ext JS class configs and properties before the class constructor is executed.

          MVC with ViewControllers

          • Provides class annotation-driven association between a given view and its ViewController.
          • Clarifies the role of the controller - i.e. controlling a view and delegating work to injected business services (service classes, Stores, etc.).
          • Supports multiple independent instances of a given view, each with their own ViewController instance.
          • Reduces memory usage by automatically creating and destroying view controllers in tandem with their associated views.
          • Supports concise configuration for referencing view components and registering event listeners with view controller methods.
          • Integrates with the view destruction lifecycle to allow the view controller to potentially cancel removal and destruction.
          • Simplifies clean-up by automatically removing view and view component references and event listeners.

          项目主页：http://www.open-open.com/lib/view/home/1409131598713