Abstract: Systems, methods, and non-transitory computer-readable media can obtain data describing at least one content item from a social networking system. A customized set of reaction options to be provided with the content item can be determined. The customized set of reaction options include a plurality of different options for expressing at least one reaction toward the content item, wherein each reaction is associated with at least a corresponding icon. Both (i) the content item and (ii) at least a portion of the customized set of reaction options are presented through a display interface.

Abstract: Tools and techniques are described for transparently and safely augmenting the functionality of objects in an existing collection of objects. One approach automatically creates a dynamic interface for a known object type T, having the same type signature as T. Augmentations which implement the interface are then recognized, and an interpreted or compiled code environment is adjusted to invoke their functionality, which is orthogonal to the indicated functionality of type T. An application program executing in the adjusted environment automatically and transparently generates an instance of each augmentation, and the augmentations are composed to run when the original object of type T is accessed.

Abstract: Tools and techniques are described for transparently and safely augmenting the functionality of objects in an existing collection of objects. One approach automatically creates a dynamic interface for a known object type T, having the same type signature as T. Augmentations which implement the interface are then recognized, and an interpreted or compiled code environment is adjusted to invoke their functionality, which is orthogonal to the indicated functionality of type T. An application program executing in the adjusted environment automatically and transparently generates an instance of each augmentation, and the augmentations are composed to run when the original object of type T is accessed.