HTML DOM

JS DOM HTML

Modifying HTML with DOM

JavaScript DOM HTML manipulates innerHTML, with XSS precautions.

Understanding innerHTML

The innerHTML property in JavaScript is used to get or set the HTML content of an element. This property is powerful because it allows you to dynamically change the content of your web pages. However, it's essential to use it cautiously to avoid security vulnerabilities such as Cross-Site Scripting (XSS).

Setting HTML Content

To set the HTML content of an element, you use the innerHTML property. This can be done by selecting the element and assigning a new HTML string to its innerHTML property. Be cautious when inserting dynamic content to prevent XSS attacks.

Getting HTML Content

To retrieve the HTML content of an element, access the innerHTML property. This is useful for debugging or when you need to manipulate or analyze the content programmatically.

XSS Precautions

Cross-Site Scripting (XSS) is a security vulnerability where attackers inject malicious scripts into web pages viewed by other users. To prevent XSS, always sanitize any dynamic content before inserting it into the DOM. Additionally, consider using libraries like DOMPurify for robust sanitization.