Book Image

Learning ServiceNow

By : Sylvain Hauser
Book Image

Learning ServiceNow

By: Sylvain Hauser

Overview of this book

This book shows you how to put important ServiceNow features to work in the real world. We will introduce key concepts and examples on managing and automating IT services, and help you build a solid foundation towards this new approach. We’ll demonstrate how to effectively implement various system configurations within ServiceNow. We’ll show you how to configure and administer your instance, and then move on to building strong user interfaces and creating powerful workflows. We also cover other key elements of ServiceNow, such as alerts and notifications, security, reporting, and custom development. You will learn how to improve your business’ workflow, processes, and operational efficiency. By the end of this book, you will be able to successfully configure and manage ServiceNow within your organization.
Table of Contents (21 chapters)
Learning ServiceNow
Credits
About the Author
About the Reviewer
www.packtpub.com
Customer Feedback
Preface

Scripting in UI Policies


UI Policy conditions are evaluated both on-load (if the On Load tick-box is selected on the Advanced view) and whenever an update is made to any field on a form in ServiceNow. When an update is made, the condition on the UI Policy is re-evaluated. If the condition returns true, then the UI Policy Actions run. If the conditions return false (and Reverse if false is enabled) then the opposite of the UI Policy Actions run.

Understanding that these events all happen within the browser (AKA the client) tells us that UI Policies are evaluated client-side. In the Advanced view of the UI Policy form, there is a Script section. In this section, if the Run Scripts tick-box is selected, two script input fields will be displayed: Execute if true, and Execute if false. Each script has a pre-defined default value, which acts as the scaffolding for the script:

function onCondition() { 
 
} 

Any code you write inside of that function will be executed client-side, and thus will have...