What is the connection between bom and dom?

The connection between bom and dom: 1. BOM and DOM are key concepts in web development, and together they form the basis of web applications; 2. BOM and DOM are both operated with js language. Through js developers can use BOM objects to control the size, position, etc. of the browser window; 3. There are some interactions between BOM and DOM. Through the window object of BOM, developers can access DOM and use DOM methods to operate in the document. elements; 4. The operations of BOM and DOM can affect each other.

The operating system for this tutorial: Windows 10 system, DELL G3 computer.

BOM (Browser Object Model) and DOM (Document Object Model) are two concepts often used in Web development. Although they represent different concepts and functions, there are some connections between them.

First, let us understand the basic concepts of BOM and DOM.

BOM refers to the browser object model, which provides a set of objects that interact with the browser window and the browser. The BOM contains some global objects, such as window, navigator, location, screen, etc., which allow developers to control the browser window and operate various aspects of the browser.

DOM refers to the Document Object Model, which provides a way to represent HTML or XML documents so that the content, structure, and style of the document can be manipulated programmatically. The DOM provides a set of objects and methods that enable developers to access and manipulate elements, properties, and events in a document.

Now let’s take a look at the connection between BOM and DOM.

1. Both BOM and DOM are key concepts in web development, and together they form the basis of web applications.

2. Both BOM and DOM are operated using JavaScript programming language. Through JavaScript, developers can use BOM objects to control the size and position of the browser window, obtain the user's screen resolution, etc. At the same time, through the DOM, developers can access and modify elements, attributes, and events in the document.

3. There are some interactions between BOM and DOM. For example, through the BOM's window object, developers can access the DOM and use DOM methods to manipulate elements in the document. In addition, through the DOM event mechanism, developers can use BOM objects to monitor and trigger browser events, such as clicks, scrolls, etc.

4. The operations of BOM and DOM can affect each other. For example, through the BOM object's location attribute, developers can change the browser's URL, causing the DOM to reload with new document content.

5. BOM and DOM are cross-browser standards. Whether in browsers such as Chrome, Firefox, Safari or Edge, the basic concepts and operation methods of BOM and DOM are the same. This allows developers to write consistent code across different browsers.

In general, BOM and DOM are two important concepts in web development, and together they form the basis of web applications. The BOM provides a set of objects for interacting with the browser, while the DOM provides a way to represent an HTML or XML document. Although they represent different concepts and functions, there are some connections between them, such as accessing and manipulating the DOM through the BOM object, and listening and triggering browser events through the DOM's event mechanism. It is very important for web developers to understand and master the concepts and operations of BOM and DOM.

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