Salesforce Certified B2B Commerce Developer Practice Test - Questions Answers, Page 22

In a Lightning Web Component folder, the allowed file extensions include .js-meta.xml for the component's metadata, .html for the component's markup, and .js for the component's JavaScript class. These files are essential for defining the structure, behavior, and metadata of a LWC. Salesforce LWC documentation provides detailed information on the structure of a LWC bundle and the purpose of each file type within it.

A Lightning Web Component (LWC) consists of a minimum of three core files: the template file (.html), the JavaScript file (.js), and the metadata configuration file (.js-meta.xml). These files are essential for defining the structure, functionality, and configuration of the component. For more information, review the Salesforce LWC documentation: Salesforce LWC Documentation.

For a deployable Lightning Web Component like displayMyData, the required files include the component's CSS file (displayMyData.css) for styling, the metadata configuration file (displayMyData.js-meta.xml) for defining the component's configuration and properties, and the template file (displayMyData.html) for the component's HTML structure. The JavaScript file (displayMyData.js) contains the business logic but is not listed as an option here. For deployment, these files are essential. Refer to the Salesforce LWC documentation for deployment requirements: Salesforce LWC Deployment Documentation.

When naming a Lightning Web Components folder and associated files, Salesforce best practices allow the name to begin with a lowercase letter and to use a single hyphen (dash) for compound names. Whitespace and underscores are not recommended in the naming convention. This is in line with web standards for custom elements. More details can be found in the Salesforce LWC documentation on naming conventions: Salesforce LWC Naming Conventions.

A Lightning Web Component can contain an Aura component, and an Aura component can contain a Lightning Web Component. This interoperability allows for a smoother transition from Aura to LWC and enables developers to utilize the strengths of both frameworks. However, nesting a Lightning Web Component within an Aura component which in turn contains a Lightning Web Component (Option C) is not a standard practice. For more information, refer to the Salesforce documentation on using Aura and Lightning Web Components together: Salesforce Aura and LWC Interoperability Documentation.

In Lightning Web Components, to access the DOM elements within the component's template, including those passed into slots, developers use this.template.querySelector() and this.template.querySelectorAll(). These methods allow for querying the component's local DOM. Direct DOM manipulation or querying outside the component's template is discouraged to maintain component encapsulation and security. For more information, see the Salesforce LWC documentation on accessing the DOM: Salesforce LWC DOM Access Documentation.

In Salesforce, standard page reference types are used within the Lightning Component framework to reference different types of resources. The types include standard__app for Salesforce apps, standard__component for Lightning components, and standard__recordPage to reference a specific record detail or edit page (not standard__recordDetailPage, but it's implied). The standard__pageNamed and comm_loginPage are not standard page reference types recognized by Salesforce. For more details, refer to the Salesforce documentation on PageReference Types: Salesforce PageReference Types Documentation.

In Salesforce Experience Cloud, components like CMS Collection and Results Layout are designed to be reusable across different Experience templates, not just limited to B2B Commerce. CMS Collection allows for the display of CMS content in a flexible and dynamic layout, while Results Layout can be used to present search or query results in a customizable format. Salesforce documentation on Experience Cloud components emphasizes the reusability and adaptability of these components across various templates and contexts.

To make Lightning Web Components mobile-ready, one maintainable approach is to create a Lightning app page and then add the component to the mobile navigation. This ensures that the component is accessible and optimized for mobile users within the Salesforce mobile app. Another approach is to design the component's templates with responsiveness in mind, using CSS and layout techniques that adapt to different screen sizes. Salesforce documentation on mobile-ready development practices provides guidelines on creating responsive designs and optimizing components for mobile use.