What is the Document Object Model?-HTML Tutorial-php.cn

Home

Web Front-end

HTML Tutorial

What is the Document Object Model?

PHPz

Sep 15, 2023 pm 11:05 PM

文档对象模型（Document Object Model）是什么？

The Document object represents the HTML document displayed in this window. Document objects have various properties that reference other objects and allow access to and modification of document contents.

The way to access and modify the content of the document is called the document object Model, or DOM. Objects are organized hierarchically. This hierarchy is suitable for object organization in Web documents.

Window Object - The top of the hierarchy. It is the most important element of the object hierarchy.
Document Object - Each HTML document loaded into the window becomes a document object. The document contains the content of the page.
Form Object - Everything contained within the
...
tag sets the form object.
Form Control Elements - A form object contains all the elements defined for the object, such as text fields, buttons, radio buttons, and checkboxes.

The above is the detailed content of What is the Document Object Model?. For more information, please follow other related articles on the PHP Chinese website!

Statement

This article is reproduced at:tutorialspoint. If there is any infringement, please contact admin@php.cn delete

What is the purpose of the <datalist> element?Mar 21, 2025 pm 12:33 PM

The article discusses the HTML <datalist> element, which enhances forms by providing autocomplete suggestions, improving user experience and reducing errors.Character count: 159

What is the purpose of the <progress> element?Mar 21, 2025 pm 12:34 PM

The article discusses the HTML <progress> element, its purpose, styling, and differences from the <meter> element. The main focus is on using <progress> for task completion and <meter> for stati

What is the purpose of the <meter> element?Mar 21, 2025 pm 12:35 PM

The article discusses the HTML <meter> element, used for displaying scalar or fractional values within a range, and its common applications in web development. It differentiates <meter> from <progress> and ex

What is the purpose of the <iframe> tag? What are the security considerations when using it?Mar 20, 2025 pm 06:05 PM

The article discusses the <iframe> tag's purpose in embedding external content into webpages, its common uses, security risks, and alternatives like object tags and APIs.

What is the viewport meta tag? Why is it important for responsive design?Mar 20, 2025 pm 05:56 PM

The article discusses the viewport meta tag, essential for responsive web design on mobile devices. It explains how proper use ensures optimal content scaling and user interaction, while misuse can lead to design and accessibility issues.

How do I use HTML5 form validation attributes to validate user input?Mar 17, 2025 pm 12:27 PM

The article discusses using HTML5 form validation attributes like required, pattern, min, max, and length limits to validate user input directly in the browser.

What are the best practices for cross-browser compatibility in HTML5?Mar 17, 2025 pm 12:20 PM

Article discusses best practices for ensuring HTML5 cross-browser compatibility, focusing on feature detection, progressive enhancement, and testing methods.

How do I use the HTML5 <time> element to represent dates and times semantically?Mar 12, 2025 pm 04:05 PM

This article explains the HTML5 <time> element for semantic date/time representation. It emphasizes the importance of the datetime attribute for machine readability (ISO 8601 format) alongside human-readable text, boosting accessibilit

See all articles