How should the URL for file records be stored in HTML?

Storing the URL for file records using a field ID from the file cabinet is the correct approach because it ensures a structured and dynamic way to reference files within the system. By using a field ID, you are utilizing NetSuite's built-in infrastructure to maintain file relationships consistently. This allows for programmatic access to files, automatic URL generation, and ensures that links remain intact even if the underlying file structure changes.

Using a plain text string might seem straightforward, but it lacks the dynamic features and robustness that come with using IDs. Encoding a URL into a link can make it difficult to manage, especially if the file's location changes, as the coded URL would also need to be updated accordingly. Similarly, representing the record as a hyperlink without a URL creates ambiguity about the file's location and doesn't provide any actual link to the resource, thereby limiting usability and access.

Therefore, employing a field ID from the file cabinet not only maintains integrity but also leverages NetSuite’s system capabilities for seamless file retrieval.