Salesforce Lightning Interview Questions & Answers

In this post, I am going to post some useful questions and answer related to Salesforce Lightning environment.

  1. What are the type of events into Salesforce Lightning component
    1. Application Event(Salesforce Document)
    2. Component Event
    3. System Event(Salesforce Document)
  2. What is the basic difference between Application Event and Component Event
    1. The major difference between application and component event is that component event is used in child to parent components and application event can be used through out the application.
  3. Which interface need to implement so that you can use lightning component as quick action.
    1. force:lightningQuickAction
  4. Which interface need to implement so that you can use lightning component as Tab like custom object and VF page.
    1. force:appHostable
  5. Can we use Lightning Component into VF page? If yes how?
    1. Yes, using lightning out functionality of salesforce lightning component.
    2. For more details see Here
  6. How can we call child component controller method from the parent component controller method?
    1. Yes, we can call using aura methods.
    2. Salesforce Document
  7. What are the different Lightning component bundles?
    1. Component
    2. Controller
    3. Helper
    4. Style
    5. Document
    6. Design
    7. SVG
    8. Rendrer
    9. More Info Here(Salesforce Document)
  8. What is the use of Document and Rendrer in lightning component?
    1. Document: – A description, sample code, and one or multiple references to example components
    2. Client-side renderer to override default rendering for a component.
  9. How to ensure FLS while working with Lightning Component?
    1. Lightning Data Services already ensures Field Level Security and we can also use into the Apex using isAccessible, isCreateable, isDeleteable, isCreateable and etc methods of Schema class.
  10. Why we should go for Lightning Component instead of VF pages?
    1. See Here
  11. many more to go…

Happy reading and All the Best  🙂

I will keep updating the questions and answers.

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