Document Object Model (DOM): Objects and Collections

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Presentation transcript:

Document Object Model (DOM): Objects and Collections

Modeling a Document: DOM Nodes and Trees The document’s getElementById method is the simplest way to access a specific element in a page. The method returns objects called DOM nodes. Every piece of an HTML5 page (elements, attributes, text, etc.) is modeled in the web browser by a DOM node. Nodes are related to each other through child- parent relationships. An HTML5 element inside another element is said to be its child—the containing element is known as the parent. A node can have multiple children but only one parent. Nodes with the same parent node are referred to as siblings.

Viewing a Document’s DOM