Book Image

Mastering ServiceNow Scripting

By : Andrew Kindred
Book Image

Mastering ServiceNow Scripting

By: Andrew Kindred

Overview of this book

Industry giants like RedHat and NetApp have adopted ServiceNow for their operational needs, and it is evolving as the number one platform choice for IT Service management. ServiceNow provides their clients with an add-on when it comes to baseline instances, where scripting can be used to customize and improve the performance of instances. It also provides inbuilt JavaScript API for scripting and improving your JavaScript instance. This book will initially cover the basics of ServiceNow scripting and the appropriate time to script in a ServiceNow environment. Then, we dig deeper into client-side and server-side scripting using JavaScipt API. We will also cover advance concepts like on-demand functions, script actions, and best practices. Mastering ServiceNow Scripting acts as an end-to-end guide for writing, testing, and debugging scripts of ServiceNow. We cover update sets for moving customizations between ServiceNow instances, jelly scripts for making custom pages, and best practices for all types of script in ServiceNow. By the end of this book, you will have hands-on experience in scripting ServiceNow using inbuilt JavaScript API.
Table of Contents (18 chapters)
Title Page
Packt Upsell

How to use scope with update sets

When using update sets, we need to remember what scope we are currently working in. Before we use any kind of scope in an instance, we are in the global scope, and before we create any update sets in an instance, we are in the default update set.

If we are not in a created update set, then we will also be in the default update set. However, there is a different default update set for each scope in a ServiceNow instance. This is important to know so that if you do switch scopes, then your update set automatically changes, as well.

We can see this change in the update set picker if we change the scope we are working on in an instance. In Figure 11.1, we can see an instance in the Global scope:

Figure 11.1: Application and update set picker in the global scope

Because we are in the Global scope, the default update set selected for us is the default update set for the Global scope. We can see that this is shown to us by the ServiceNow instance by the text inside...