SNOW-CAD Practice Question: Automating application logic with business rules and scripts
A developer is creating a business rule that should run after a record is inserted or updated. The script should fire on both insert and update. Which condition should be used?
⚠ Common exam trap
Watch out — candidates often choose Option B because it explicitly lists both conditions, not realizing that the `in` operator is the preferred and more concise syntax in ServiceNow, or they pick Option D because they forget to exclude 'delete' from the list.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
current.operation() in ['insert','update']
The `in` operator checks if `current.operation()` matches any value in the list `['insert','update']`, which is the exact requirement for a business rule that should fire on both insert and update. This is the most concise and idiomatic way in ServiceNow to test for multiple operation types.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
current.operation().indexOf('insert') != -1
Why it's wrong here
This does not correctly check for both operations.
- ✗
current.operation() == 'insert' || current.operation() == 'update'
Why it's wrong here
This works but is less readable than using the 'in' operator.
- ✓
current.operation() in ['insert','update']
Why this is correct
This is the recommended way to check multiple operations.
- ✗
current.operation() in ['insert','update','delete']
Why it's wrong here
This includes delete, which is not required.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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