Client Scripts Questions
Implement client-side scripting for form customization and improved user experience. Master g_form, g_user, and g_list APIs for dynamic form behavior.
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About Client Scripts
Client Scripts run in the user's web browser and allow developers to customize form behavior dynamically. They respond to user actions like loading a form, changing a field, or submitting a record. The g_form API provides methods to manipulate form fields, while g_user gives access to the current user's information.
Why This Matters for Your Exam
Client Scripts represent 12% of the CAD exam. Questions test your knowledge of different client script types, the g_form API, and when to use client scripts vs UI policies. Understanding the client-side context and its limitations is crucial.
Key Concepts to Master
Master the four client script types: onLoad (form display), onChange (field value change), onSubmit (form submission), and onCellEdit (list editing). Know the g_form API methods for showing/hiding fields, setting values, and making fields mandatory.
Exam Tips
Remember that client scripts run in the browser so they cannot use server-side APIs like GlideRecord directly — use GlideAjax instead. Know that onChange scripts receive control, oldValue, newValue, and isLoading parameters. The isLoading parameter helps prevent unwanted execution during form load.
Practice Questions
21 questions availableWhich of the following is NOT one of the four types of client scripts in ServiceNow?
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Where do ServiceNow client scripts execute?
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