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
Contributors
Preface
Index

The JavaScript Log and Debug window


The JavaScript Log window is a further way that logs can be viewed in the ServiceNow platform. Rather than using the GlideSystem logging methods, this method allows you to define a different type of log to send to a window that appears at the bottom of the screen.

To see the JavaScript Log window, you can go to the system settings of the instance you are working on. Once displayed, select the Developer option. From here, set the JavaScript Log and Field Watcher attribute to show the JavaScript Log window. 

We can see the attribute set in Figure 9.13:

Figure 9.13: Developer system settings showing the JavaScript log and Field Watcher option

Once the JavaScript Log and Field Watcher attribute has been set, you will see a window appear at the bottom of the screen. This is the same window that appears to show a watched field, but this time, the tab set will be JavaScript Log.

We can see the window that appears in Figure 9.14:

Figure 9.14: JavaScript Log window

This...