What is the primary method to ensure dynamic JavaScript is accessible?

The primary method to ensure that dynamic JavaScript is accessible is through the appropriate use of ARIA (Accessible Rich Internet Applications) to mark up elements. ARIA provides a set of attributes that can be added to HTML elements to enhance their accessibility for users with disabilities, particularly those who rely on assistive technologies such as screen readers.

When using JavaScript to create dynamic content, it is crucial to inform assistive technologies about changes in the state of the page or user interface components. By utilizing ARIA attributes, developers can communicate important information such as the role of an element, its state (e.g., expanded or collapsed), and its properties, ensuring that users have the necessary context to interact with the dynamic content effectively.

Effective implementation of ARIA improves the overall user experience, specifically for those who may not be able to perceive or navigate standard web content due to various challenges. It bridges the gap between the dynamic nature of JavaScript and the need for accessible user interfaces.

In contrast, while other options might contribute to accessibility in certain contexts, they do not address the specific need for communicating changes in dynamic content as effectively as ARIA does. For example, marking up the logic of the script may improve code readability but does not aid users directly.