ServiceNow Script Include Interview Questions 2026
What is Script Include?
Script Include contains set of variables and functions which are executed on server side. It is a reusable script logic which will only execute when called by other scripts such Business Rule, script actions, client script etc.
Script Include contains set of variables and functions which are executed on server side. It is a reusable script logic which will only execute when called by other scripts such Business Rule, script actions, client script etc.
What are the different type of Script Includes?
It is divided into below two types based on where it is being called/used :
a. Client callable Script Include: Here Client Callable checkbox is checked and it extends "AbstractAjaxProcessor" class
b. Server callable Script Include.
Based on it's structure, it can be divided into below 3 types :
1. On demand/classless Script Include: On demand Script Include in ServiceNow does not contain class (class less) and it only defines a
single function. We cannot use on demand Script Include on client side.
On demand Script Include can be defined as shown below:
On demand Script Include can be called in another server side scripts as mentioned below:
var demo=demoOnDemand();
2. Extend an existing class: extending of class is basically inheriting of class, means accessing the fields and methods of
another class.
We can extend another Script Include in an existing class as mentioned below:
c. Define a new class: Creating a new Script Include is basically creating a new class. When we define Script Include in
ServiceNow, then basic syntax gets auto populated as mentioned below:
It is divided into below two types based on where it is being called/used :
a. Client callable Script Include: Here Client Callable checkbox is checked and it extends "AbstractAjaxProcessor" class
b. Server callable Script Include.
Based on it's structure, it can be divided into below 3 types :
1. On demand/classless Script Include: On demand Script Include in ServiceNow does not contain class (class less) and it only defines a
single function. We cannot use on demand Script Include on client side.
On demand Script Include can be defined as shown below:
On demand Script Include can be called in another server side scripts as mentioned below:
var demo=demoOnDemand();
2. Extend an existing class: extending of class is basically inheriting of class, means accessing the fields and methods of
another class.
We can extend another Script Include in an existing class as mentioned below:
c. Define a new class: Creating a new Script Include is basically creating a new class. When we define Script Include in
ServiceNow, then basic syntax gets auto populated as mentioned below:
What are private functions in Script Include and how to declare function as private?
Private function in Script Include is a function which can only be accessible/called in same or extended Script Include, it cannot be called from BR, Client Script etc.
Private functions can be defined with prefix underscore as shown below :
Private function in Script Include is a function which can only be accessible/called in same or extended Script Include, it cannot be called from BR, Client Script etc.
Private functions can be defined with prefix underscore as shown below :
How to call Script Include from Server side script?
We can call Script Include in any server side script as shown below:
We can call Script Include in any server side script as shown below:
How to call Script Include from Client side?
It can be called from client side by using GlideAjax API.
To call Script Include at client side we have to make sure that client callable checkbox in Script Include is checked and Script Include class is extending class ‘AbstractAjaxProcessor’.
Example :
It can be called from client side by using GlideAjax API.
To call Script Include at client side we have to make sure that client callable checkbox in Script Include is checked and Script Include class is extending class ‘AbstractAjaxProcessor’.
Example :
How to call one function of Script Include to another function of same Script Include?
We can call internal function in the same Script Include as mentioned below:
this.functionName();
We can call internal function in the same Script Include as mentioned below:
this.functionName();
What is initialize() function in Script Include? And when it gets executed?
The initialize() function acts as constructor which can be used to set default values of variables.
This function automatically gets executed when we create object of Script Include class.
The initialize() function acts as constructor which can be used to set default values of variables.
This function automatically gets executed when we create object of Script Include class.
Most candidates who fail weren't underskilled.
They were underprepared.
These free questions cover the basics. But interviews go deeper. Discovery, ITOM, SecOps, Flow Designer, Now Assist, AI Agents. The Job Switch Kit gives you the full 15-day roadmap, 500+ structured Q&A across every module, a LinkedIn profile optimisation guide so recruiters find you before you even apply, and an interview bot that practices with you until you're ready. Most candidates walk in under-prepared. Don't be one of them.
Battle-tested questions with structured answers across every high-frequency topic — ITOM, SecOps Vulnerability Response, Discovery, Flow Designer, AI Agents, Generative AI, and Now Assist. Plus a dedicated Behavioral round covering HR questions, STAR method answers, salary negotiation, and career direction — because technical prep alone is not enough to get the offer
Day-by-day curriculum in the right order — scripting fundamentals, ITSM & CMDB, integrations, AI modules, and behavioral prep — so you peak exactly on interview day
Two modes: system-guided sessions with curated ServiceNow questions, and self-practice where you bring your own questions. Every session is recorded — download your Q&A transcript, review your answers, and pinpoint exactly where you need to improve
Proven strategies for counter-offers, CTC decoding & in-hand salary strategy
Notice period tactics, BGV prep, resignation playbook & offer comparison
Track completion per topic, rate your confidence per question, add private notes at question level and page level. Only you see them. Always know exactly what to tackle next
Step-by-step guide to rank in recruiter searches before you apply. Module-specific keyword lists, role-based headline and About section templates, experience bullet formulas, and certification display guidance built specifically for ServiceNow professionals
🔒 Secure payment via Razorpay · Instant access after payment
Your story could be the reason someone else lands their next ServiceNow role
If this content made a real difference in your prep, sharing that experience with your network helps other professionals discover it — and we'd love to say thank you with 10 days of premium access, completely on us.
Real Interview Questions & Answers
Questions shared by ServiceNow professionals and reviewed for clarity, relevance, and interview usefulness.
Share real interview questions and help the ServiceNow community prepare better. All submissions are reviewed before publishing.
🚀 Power Up Your ServiceNow Career
Join a growing community of smart ServiceNow professionals to stay ahead in interviews, sharpen your development skills, and accelerate your career.
No comments yet — be the first to share your thoughts!
Login to leave a comment or feedback. Your voice helps improve the content for everyone.