The DOM Application Programming Interface

The DOM and the application programming interface (API)

Besides describing a standard object model for HTML, the DOM standard defines an Application Programming Interface (API) to manage this model.

The available functionality of this API is defined as:

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A set of abstract interfaces, such as HTMLDocument (describes the behavior of an HTML document behind a web page), HTMLElement (a single instance of a markup element within a document), HTMLCollection (a collection of HTMLElement instances), and others.

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These abstract interfaces are implemented in multiple places to support all DOM related operations.