Why are we divided into dom and bom?

The purpose of separating DOM "Document Object Model" and BOM "Browser Object Model" is to better organize and manage the structure and user interface of Web pages, as well as browser windows and interaction functions: 1. DOM mainly Responsible for representing and operating the content, structure, and style of web pages; 2. BOM is mainly responsible for representing and operating browser-related functions such as browser windows, history records, and screen information.

# Operating system for this tutorial: Windows 10 system, Dell G3 computer.

The purpose of separating DOM (Document Object Model) and BOM (Browser Object Model) is to better organize and manage the structure and user interface of Web pages, as well as browser windows and interaction functions. Below I will explain in detail why these two models should be separated:

DOM (Document Object Model)

DOM is mainly responsible for representing and manipulating the content, structure and style of web pages. It includes It contains HTML elements, nodes in the document, and the methods and properties related to these elements and nodes. The separation of DOM has the following benefits:

1. Clear structure: The content and structure of the web page are abstracted into a DOM tree, allowing developers to dynamically update the page content by manipulating the DOM to achieve rich interactive effects.
2. Independence: The independence of DOM allows developers to focus on processing the content and structure of web pages without caring about specific browser windows and interactions.
3. Cross-platform: The standardization of DOM enables consistent operations on web page structure and content in different browsers, thereby achieving cross-platform compatibility.

BOM (Browser Object Model)

BOM is mainly responsible for representing and operating browser windows, history records, screen information and other browser-related functions. It is related to specific browsing Depends on the implementation of the server. The separation of BOM has the following benefits:

1. Browser control: BOM can be used to control browser behavior, such as opening new windows, closing windows, jumping pages, etc.
2. User interaction: BOM provides functions related to user interaction, such as pop-up boxes, timers, etc., allowing developers to better achieve a user-friendly interactive experience.
3. Browser information: BOM provides functions such as obtaining browser information and screen information, which facilitates developers to customize processing according to different browser and screen characteristics.

In short, the separation of DOM and BOM allows developers to more clearly handle the content and structure of web pages and functions related to browser windows and user interaction, thus improving the maintainability and reliability of the code. Scalability.

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