In this blog, I have covered some important interview questions related to Lightning framework. These questions will be very helpful if you are a Salesforce developer or a Salesforce admin.
Question 1 : What is AURA framework?
Aura framework is an open-source framework created by Salesforce to build dynamic web applications for mobile and desktop. Salesforce uses AURA to develop apps . Salesforce Lightning is created with the help of Aura framework.
Question 2 : What is the difference between application event and component event?
Component event: is used to communicate with the parent component using bubble mechanism.
Application event: this event is used to broadcast to other components and not exclusively ancestors. Application events :Â can communicate with multiple components which are interested by the event.
Question 3 : What is the purpose of Implements in Lightning component?
Implements keyword is used to implement multiple interfaces in lightning component.
For example:
flexipage:availableForAllPageTypes,force:hasRecord,flexipage:availableForRecordHome
Question 4 : What is the use of aura : RegisterEvent in Lightning framework?
aura:registerevent is the notifier component and it tells that it may fire a particular event.
aura:Â RegisterEvent has two main attribute “name” attribute and “type “attribute. “name ” attribute is only relevant to component event and is not used for application event. “type” attribute tells the component which event will be fired.
for example: <aura:registerEvent name=”Event” type=”c:EventName” />
Question 5 : How to communicate between two salesforce lightning components using attributes?
- Communication between two components in lightning means to transfer the data from child component to parent or from parent to child component. A lightning component cannot directly communicate with the parent component or vice-versa.
- Communication between the components has to be defined by the programmer.
- Communication between components can happen in two ways:
1) Using attributes or methods to exchange data from parent to child component
2) Using events to transfer data from child to parent component.
Conclusion
Understanding the Lightning Framework is a fundamental step toward becoming a proficient Salesforce developer. The concepts covered in this blog from the AURA framework and event driven communication to component interfaces and event registration form the backbone of modern Salesforce application development. Mastering these topics not only strengthens your ability to build dynamic, scalable web applications but also prepares you confidently for Salesforce developer interviews. As the Salesforce ecosystem continues to evolve, staying well-versed in Lightning concepts remains an invaluable asset for any developer or administrator aiming to excel in this domain.
Expand Your Knowledge Further
If you found these interview questions helpful and wish to deepen your understanding of Salesforce Lightning development, we highly recommend enrolling in our comprehensive Salesforce Lightning Web Component Development Course, designed to take you from the fundamentals all the way to advanced development techniques with hands-on, practical learning. You can also explore our full range of professional training programs on the My Tutorial Rack Courses to find the right learning path tailored to your career goals. Additionally, for those seeking official Salesforce certification preparation, the Salesforce Trailhead Platform Developer I Certification Prep module is an excellent free resource provided directly by Salesforce to reinforce your skills and boost your certification readiness.
