SNOW-CAD User Interface Development Practice Question
A Service Portal widget uses AngularJS. The developer needs to share data between the client script and the HTML template. What is the correct approach?
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
✓
Use the 'c' object (c.data) provided by the widget framework.
In ServiceNow portal widgets, the 'c' object serves as the client-side controller context, and data stored in c.data is accessible in both the client script and the HTML template. This is the recommended approach for sharing data within a widget. Option A is wrong because $rootScope makes data global and can lead to unintended side effects. Option B is wrong because $scope is not directly used in the widget framework; instead, the 'c' object provides the scoped context. Option D is wrong because AngularJS factories are meant for reusable services, not for widget-specific data binding.
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 $rootScope to make data globally available.
Why it's wrong here
Global scope is not recommended and can cause conflicts.
- ✗
Use $scope to store data in the client controller.
Why it's wrong here
$scope is available but not the intended pattern; 'c' is preferred.
- ✓
Use the 'c' object (c.data) provided by the widget framework.
Why this is correct
The 'c' object is the official way to bind data between server and client in widgets.
- ✗
Create a custom AngularJS factory to manage data.
Why it's wrong here
Factories are for shared services, not for widget-specific data binding.
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Written by Johnson Ajibi, MSc IT Security
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This SNOW-CAD practice question is part of Courseiva's free ServiceNow certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SNOW-CAD exam.