面试题与答案

Lightning App Builder is a visual tool that allows users to create custom pages for the Salesforce mobile app or Lightning Experience without code.

Example:

Using Lightning App Builder, administrators can drag and drop components to design custom pages.

Lightning Record Pages are used to customize the layout and organization of information for a specific object's record in Lightning Experience.

Example:

You can use Lightning Record Pages to create a tailored user experience for different record types.

Events in Salesforce Lightning are used to communicate between components and enable a loosely coupled architecture.

Example:

A Lightning Component can fire an event, and other components can listen and respond to that event.

A Lightning Web Component (LWC) is a lightweight, standards-based component framework for building web components on the Salesforce platform.

Example:

LWC uses modern JavaScript and HTML to build components that are interoperable with web standards.

The Aura framework is the underlying framework for the Lightning Component framework, providing the runtime for Lightning Components.

Example:

Developers use Aura framework to build reusable components that can be used in the Lightning Experience.

Errors in Lightning components can be handled using the try-catch block in JavaScript or by using the Lightning:notificationsLibrary component.

Example:

You can display error messages to users or log errors for debugging purposes.

You can use the tag to include a Lightning Component in a Visualforce page.

Example:

Apex is used in Salesforce Lightning to implement server-side logic for Lightning components.

Example:

You can use Apex controllers to handle server-side processing and interact with the Salesforce database.

Application events are used for communication between components that are not in the same containment hierarchy, while component events are for communication between components in the same hierarchy.

Example:

Use application events when components are not directly related, and component events when they are.

Lightning Locker Service enhances security by isolating components in their own namespace, preventing access to global resources.

Example:

It helps in preventing cross-site scripting (XSS) and ensures a secure environment for Lightning components.

You can use the Salesforce1 navigation menu to access Lightning components in the Salesforce1 mobile app.

Example:

By adding your Lightning component to a Lightning app and configuring it for the Salesforce1 navigation menu.

The aura:iteration tag is used to iterate over a collection of items and generate the specified HTML or components for each item.

Example:

It is useful for displaying lists or tables of data in a Lightning component.

Lightning Data Table is a component that displays a table of data with features like sorting, inline editing, and row selection.

Example:

It is often used to present data in a tabular format within Lightning components.

The lightning:recordEditForm component is used to create a form for editing a record in Lightning Experience or Salesforce mobile app.

Example:

It simplifies the process of creating, updating, or deleting records in a Lightning component.

The lightning:overlayLibrary component is used to create modals, popovers, and other overlay components in Lightning Experience.

Example:

It provides a standardized way to create and manage overlay components.

You can use the apex:includeLightning tag to include Lightning components in Visualforce pages.

Example: