B2B-Commerce-Developer Practice Test

Explanation:

Two guidelines for logging that are used within the core Salesforce B2B Commerce product are:

The close method of ccrz.ccLog must be called at the end of the remote action. This method will flush the log messages to the browser console or to a custom object, depending on the logging mode. If this method is not called, the log messages may not be displayed or saved properly.

No calls to ccrz.ccLog can be made before cc_CallContext.initRemoteContext is executed. This method will initialize the call context object, which contains information such as the current user, cart, storefront, and configuration settings. These information are required for logging, so calling ccrz.ccLog before initializing the call context will result in an error.

Salesforce References: B2B Commerce and D2C Commerce Developer Guide, Logging

Explanation:

The method that is used to override when extending the Salesforce B2B Commerce logic providers is doLogic. This method is responsible for executing the business logic for each logic provider class, such as validating inputs, performing calculations, applying rules, or updating data. By overriding this method, the user can modify or extend the existing logic or add their own custom logic.

Salesforce References: B2B Commerce and D2C Commerce Developer Guide, Logic Classes

Explanation:

To investigate the issue of seeing unexpected UI behavior in one of the custom Lightning web components (LWCs) their team has built, the developer should enable Debug Mode for a storefront user, log in to the storefront, and use Browser Inspection tools and debugger points. Debug Mode is a feature that allows developers to debug and troubleshoot custom LWCs in the storefront by disabling performance optimizations and enabling source maps. Source maps are files that map the minified or obfuscated code to the original source code, making it easier to read and debug. To enable Debug Mode for a storefront user, the developer can go to Setup, enter Users in the Quick Find box, select Users, click Edit next to the user name, and select Debug Mode. After enabling Debug Mode, the developer can log in to the storefront as the user and use Browser Inspection tools and debugger points to inspect and debug the custom LWC. Browser Inspection tools are tools that are built into web browsers that allow developers to examine and modify the HTML, CSS, JavaScript, and other aspects of a web page. Debugger points are statements that are added to the JavaScript code of a LWC that pause the execution of the code at a certain point and allow the developer to inspect the values of variables, expressions, and other elements. Enable Debug Mode for a storefront user, load the LWC in Visual Studio (VS) Code, attach to session, and view debug logs in VS Code is not a valid way to investigate the issue of seeing unexpected UI behavior in one of the custom LWCs their team has built, as it is not possible to attach to a session or view debug logs for LWCs in VS Code. Enable debug logs for a storefront user, log in to storefront and perform action, and view debug logs in Setup is not a valid way either, as debug logs do not capture information about LWCs or UI behavior.

Debug logs are records of database operations, system processes, and errors that occur when executing a transaction or running unit tests. Identify the user, inputs, and failure, then ask Salesforce support to investigate the issue with the custom LWC is not a valid way either, as it is not a recommended or efficient way of debugging or troubleshooting custom LWCs. Salesforce support may not be able to provide assistance or guidance for custom LWCs that are developed by third-party developers. Salesforce References: B2B Commerce Developer Guide: Debug Lightning Web Components, Lightning Web Components Developer Guide: Debug Your Code, Salesforce Help: Debug Logs

Explanation:

When migrating aura components to LWC, a developer should consider two guidelines: migrate one component and then determine whether additional effort would make sense and start with simple components that only render UI. Migrating one component and then determining whether additional effort would make sense allows the developer to evaluate the benefits and costs of migration and decide whether to continue or stop. Migrating simple components that only render UI allows the developer to leverage the performance and modern features of LWC without much complexity or dependency on other components or services. Starting with migrating trees of components (components within components) is not a good guideline, as it can introduce more challenges and dependencies that can complicate the migration process. Forcing all developers to write any new components using Lightning web components is not a good guideline either, as it can create inconsistency and confusion among developers and users.

Salesforce References: [Lightning Web Components Developer Guide: Migrate Aura Components to Lightning Web Components], [Lightning Web Components Developer Guide: Migration Considerations]

Explanation:

A target value of lightning__FlowScreen in metadata allows for a Lightning web component to be used in guided user experiences to gather input and to automatically generate configuration properties for the Lightning web component. The lightning__FlowScreen target value specifies that the component can be used on a flow screen, which is a type of flow element that displays information and collects user input in a flow. A flow is a guided user experience that can automate business processes and guide users through screens, actions, and decisions. By using the lightning__FlowScreen target value, the developer can expose their Lightning web component as a custom screen component that can be added to any flow screen. The developer can also use the @api decorator to expose public properties of their Lightning web component as configuration properties that can be set in Flow Builder. Flow Builder is a tool that allows the developer to create and modify flows using a drag-and-drop interface. A target value of lightning__FlowScreen does not allow the Lightning web component to replace standard functionality in flows and subflows or to be dragged onto a page in Lightning App Builder, as these are not related to the flow screen target value.

Salesforce References: Lightning Web Components Developer Guide:

Configure Components for Flows, Lightning Web Components Developer Guide:

Communicate with Flow, Lightning Flow Developer Guide: Screen Components Basics