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DOM HTML
HTML DOM allows JavaScript to access and change all the elements of an HTML document.
The HTML DOM (Document Object Model)
When a web page is loaded, the browser creates a Document Object Model of the page.
The HTML DOM model is constructed as a tree of Objects.

With the object model, JavaScript gets all the power it needs to create dynamic HTML.JavaScript can alter all the HTML elements in the page.
- JavaScript can alter all the HTML attributes in the page.
- JavaScript can alter all the CSS styles in the page.
- JavaScript can remove existing HTML elements and attributes.
- JavaScript can add new HTML elements and attributes.
- JavaScript can react to all existing HTML events in the page.
- JavaScript can create new HTML events in the page.
What is the DOM?
The DOM is a W3C (World Wide Web Consortium) standard.
The DOM specifies a standard for accessing documents:
“The W3C Document Object Model (DOM) is a platform and language-neutral interface that enables programs and scripts to dynamically access and update the content, structure, and style of a document.”
The W3C DOM standard is divided into three different parts:
- Core DOM – standard model for all document types
- XML DOM – standard model for XML documents
- HTML DOM – standard model for HTML documents
What is the HTML DOM?
The HTML DOM is a standard object model and programming interface for HTML. It defines:
- The HTML elements as objects.
- The properties of all HTML elementsd.
- The methods to access all HTML elements.
- The events for all HTML elements.
- In other words: The HTML DOM is a standard for how to get, change, add, or delete HTML elements.