Integrating and managing application data →hardMultiple ChoiceObjective-mapped

SNOW-CAD Integrating and managing application data Practice Question

Exhibit

Refer to the exhibit.

Transform map script:
```
(function runTransform0(source, target, map, log) {
    target.setValue('short_description', source.u_summary);
    target.setValue('description', source.u_description);
    target.setValue('category', source.u_category);
})(source, target, map, log);
```

The transform map fails when the source field 'u_summary' is null. What is the best way to prevent this error?

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

✓

Add a null check before setting: if(source.u_summary) target.setValue('short_description', source.u_summary);

It adds a null check before setting the value, preventing the transform map from failing when source.u_summary is null. Option A is incorrect because it does not handle null, which would still cause an error. Option C is incorrect because 'return true;' does not address null values. Option D is incorrect because mapping to a system field like 'sys_created_by' avoids the null issue but is not the best practice; using a null check is the appropriate approach.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
Use target.short_description = source.u_summary instead
Why it's wrong here
Direct assignment may also fail on null; setValue is acceptable.
✓
Add a null check before setting: if(source.u_summary) target.setValue('short_description', source.u_summary);
Why this is correct
Null check prevents the script from erroring when the source field is empty.
✗
Add a 'return true;' statement at the end
Why it's wrong here
Return value does not prevent null errors.
✗
Map to a system field like 'sys_created_by'
Why it's wrong here
This is unrelated to null handling.

Go deeper

SNOW-CAD Integrating and managing application data Practice Question

Exhibit

Why each option matters

Option-by-option breakdown

Related to this question