## BaseWebExtensionColl class Base class for [TaskPaneCollection](../taskpanecollection/), [WebExtensionBindingC](../webextensionbindingc/), [WebExtensionProperty](../webextensionproperty/) and [We...... ```cpp template<typename T>class BaseWebExtensionColl...[Clear](./clear/)() | Removes all elements from the collection. | | [end](...