Which tasks can Client Scripts perform?

Client Scripts in NetSuite are designed to enhance the user experience by automating interactions within the user interface and validating user inputs before data is sent to the server. They run on the client side, meaning they execute in the user's browser, and are typically employed for tasks like managing form behaviors, performing calculations, and providing on-the-fly validation of user-entered data.

For example, Client Scripts can be used to ensure that a required field is filled out correctly or to automatically populate a field based on the user's input in another field. This immediate feedback and automation help streamline processes and reduce errors.

The other tasks listed, while potentially relevant in a broader scope of application management, do not fall within the specific capabilities of Client Scripts. They cannot manage backend database interactions, as this is the role of server-side scripts; they are not designed to modify system security settings, which involve higher-level administrative permissions and server-side operations; and they do not handle file uploads and downloads directly, as these tasks typically require more secure server-side processing. Therefore, the primary and correct function of Client Scripts lies in automating user interactions and validating inputs.