Does ServiceNow use Java or JavaScript?

ServiceNow primarily uses JavaScript as its scripting language, not Java. JavaScript is used for both client-side and server-side scripting within the platform. Here’s a breakdown of how JavaScript is utilized in ServiceNow:

1. Client-Side (Browser)

• Client Scripts: Used to control form behavior, validate data, and dynamically update the user interface (UI). These scripts run in the user’s browser.
• UI Policies and UI Actions: You can enhance form fields, visibility, and user interactions using JavaScript.
• Service Portal: Custom widgets for the Service Portal are built using JavaScript and AngularJS.

2. Server-Side (Server)

• Business Rules: These are server-side scripts that execute when records are inserted, updated, or deleted. They automate backend processes.
• Script Includes: Reusable server-side JavaScript functions that can be called from various parts of the platform.
• GlideRecord: A JavaScript-based API used to query, update, and manipulate records in the ServiceNow database.
• Scheduled Jobs and Events: Server-side scripts are used to automate tasks and schedule actions within ServiceNow.

3. Integration

• REST and SOAP APIs: JavaScript is also used to handle integrations with external systems, making API calls and managing data flow between systems.

Why Not Java?

While Java is not used directly by developers in ServiceNow, the platform itself is built on a Java-based infrastructure. However, for customization, scripting, and development, JavaScript is the primary language you will work with.

Conclusion

ServiceNow primarily uses JavaScript for scripting and development, while the platform's backend runs on Java. If you're customizing or developing on ServiceNow, JavaScript is the main language you'll be working with.