Packt+ | Advance your knowledge in tech

You're reading from ServiceNow: Building Powerful Workflows Automating IT Service Management

Product type Course

Published in Aug 2017

Publisher Packt

ISBN-13 9781788628730

Length 1330 pages

Edition 1st Edition

Languages

JavaScript

Tools

ServiceNow

Concepts

IT Service Management

Authors (3):

Tim Woodruff

Martin Wood

Ashish Rudra Srivastava

View More author details

Table of Contents (39) Chapters

Title Page

Credits

Preface

1. Module 1 FREE CHAPTER

Learning ServiceNow

2. The Interface

3. Lists and Forms

4. UI Customization

5. Understanding Data and Relationships

6. Tasks and Workflows

7. UI and Data Policies

8. User Administration and Security

9. Introduction to Scripting

10. The Server-side Glide API

11. The Client-side Glide API

12. Server-side Scripting

13. Client-side Scripting

14. Debugging

15. Pro Tips

16. Module 2

ServiceNow Cookbook

17. Getting Started with Service-Now

18. Performing Core Configuration and Management Tasks

19. Building Data-Driven Application

20. Configuring Alerts and Notifications

21. Building and Configuring Reports

22. Creating and Configuring Workflow Activities

23. Auditing and Diagnosing Service-Now

24. Module 3

Mastering ServiceNow

25. ServiceNow Foundations

26. Developing Custom Applications

27. Server-Side Control

28. Client-Side Interaction

29. Getting Things Done with Tasks

30. Events, Notifications, and Reporting

31. Exchanging Data – Import Sets, Web Services, and other Integrations

32. Securing Applications and Data

33. Diagnosing ServiceNow – Knowing What Is Going On

34. Packaging with Applications, Update Sets, and Upgrades

35. Making ServiceNow Beautiful with Service Portal and Custom Interfaces

36. Bibliography

Digging into Jelly

The web's language is HTML. Every page rendered by a web browser has some HTML content. Therefore, the ultimate job of any website is to generate the HTML that contains data formatted in the desired manner. The browser then renders it and hopefully displays something beautiful, informative, and useful.

ServiceNow uses Jelly to generate HTML. The Jelly processor in ServiceNow takes in an XML template and produces HTML. There are a variety of Jelly elements, including variables, loops, and conditions, which means that the produced HTML depends on the data that the processor is fed. In addition, ServiceNow has extended beyond the standard Jelly tags, allowing JavaScript to be used inside a Jelly XML document while also incorporating caching. This makes it powerful and fast!

Note

The name Jelly was originally short for Java Elements. You can find more information about it at http://commons.apache.org/jelly. It is not something to eat!

While Jelly is very powerful, it is slowly...