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Mastering ServiceNow Scripting

Mastering ServiceNow Scripting

By : Kindred
3.4 (7)
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Mastering ServiceNow Scripting

Mastering ServiceNow Scripting

3.4 (7)
By: 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 (14 chapters)
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Script examples

Having introduced the basic elements of client-side scripting and how and where to use it, we can take a look at some examples of scripts to further our understanding.

We'll start by looking at some client script examples.

In this first example, we'll use an onLoad client script to show and hide form sections based on the logged-in users' roles. We'll only show the related records form section on the incident form if the logged-in user has the itil_admin role:

function onLoad() {
if (g_user.hasRole('itil_admin')) {
g_form.setSectionDisplay('related_records', false);
}
}

As you can see in the example, we are using g_user's hasRole method to determine whether the logged-in user has the required role. If they don't, then we use the g_form setSectionDisplay method to hide the form section. Putting this client...

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