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DIFFERENCE BETWEEN CLIENT AND SERVER-SIDE SCRIPTING?

Here’s a comparison between client-side and server-side scripting in ServiceNow presented in a table format:

FeatureClient-Side ScriptingServer-Side Scripting
LocationExecutes within the user’s web browser or client environment.Executes on the server hosting the ServiceNow instance.
PurposeEnhances the user interface (UI) and provides dynamic interactions for users.Handles backend logic, data processing, and business rules.
LanguagePrimarily JavaScript, HTML, and CSS for UI customization and client interactions.Primarily JavaScript for business logic, Glide APIs for database interactions, and server-side processing.
Interaction with UIInteracts directly with UI elements and user actions such as clicks, form submissions, and field selections.Business rules enforcing data validation, the script includes performing server-side operations, scheduled jobs executing background tasks.
ExamplesClient scripts attached to UI elements, UI policies controlling field visibility, UI actions triggering custom actions.It can improve UI responsiveness and user experience but may introduce client-side performance issues or security risks if not managed properly.
ScopeLimited to the user’s browser session and specific client actions or events.Executes within the ServiceNow server environment and can access and manipulate server-side data and resources.
Performance and SecurityIt is generally more secure and scalable, as sensitive operations and data processing are handled server-side, reducing the risk of client-side vulnerabilities.It may require considerations for browser compatibility and accessibility standards.
Data AccessLimited access to server-side data through AJAX or GlideAjax calls.Full access to server-side data and ServiceNow APIs for querying, updating, and manipulating records and configurations.
Accessibility and CompatibilityMay require considerations for browser compatibility and accessibility standards.Less dependent on client-side factors and more focused on server infrastructure, making it compatible with various client environments.

This table compares client-side and server-side scripting in ServiceNow, highlighting their location, purpose, language, interaction with UI, examples, scope, performance, security, data access, and accessibility considerations.

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