custom getter in a Lightning web component is a JavaScript function that executes logic each time a public property is accessed. A custom getter must start with the keywordgetand be followed by a name for the property. A custom getter must also have a corresponding custom setter, which is a function that executes logic each time a public property is assigned a value. A custom setter must start with the keywordsetand have the same name as the getter. One of the getter or setter functions must be annotated with@api, which makes the property public and reactive.

Option A and Option D show the correct syntax for defining a custom getter and setter for a public property calledname. Option A shows the getter function, which returns the value of a private property called_name. Option D shows the setter function, which assigns the value of the parametervalueto the private property_name. The getter function is annotated with@api, which makes thenameproperty public and reactive.

Option B and Option C are incorrect because they do not follow the syntax for a custom getter and setter. Option B shows a regular function declaration, not a getter function. Option C shows a regular assignment statement, not a setter function. Neither option uses the@apidecorator, which is required for a public property.Reference:

Getters and Setters

Understand getter in Lightning Web component

To know if a CSS file containing small changes was actually deployed to the org, one way that a developer can accomplish this is by right-clicking the CSS file and choosing Diff File Against Org. Diff File Against Org is an option that allows the developer to compare a local file with its remote version in the org using Salesforce CLI commands. The developer can use Visual Studio Code to execute these commands by right-clicking on files or folders in the project and choosing from various diff options. Right-clicking the CSS file and choosing Diff File Against Org allows the developer to see the differences between the local CSS file and the remote CSS file in the org side by side in Visual Studio Code. This way, the developer can verify if their changes were deployed successfully or not. Clicking the Tools menu and selecting Diff Styles Against Org... is not a valid way to know if a CSS file was deployed to the org, as there is no such option in Visual Studio Code or Salesforce CLI. Right-clicking the folder for the component and choosing Diff Styles Against Org is not a valid way either, as there is no such option in Visual Studio Code or Salesforce CLI. Right-clicking the folder for the component and choosing Diff Files Against Org is not a valid way either, as it will compare all the files in the folder, not just the CSS file, which may not be efficient or necessary. Salesforce Reference: [Salesforce CLI Command Reference: force:source:diff], [Salesforce Developer Tools for Visual Studio Code]

Salesforce documentation clarifies the interoperability between Aura and Lightning Web Components (LWCs). An Aura component can indeed contain another Aura component, as well as a LWC, allowing for a mix of component technologies in a single application. However, due to the architectural and design principles of LWCs, a LWC cannot contain an Aura component. This is because LWCs are designed to be lightweight and leverage web standards, which makes them not fully compatible with the older Aura component framework in terms of containment.

According to theB2B Commerce Developer Guide, the Order List Component (Aura) for B2B stores displays a list of orders that the user can view and reorder. The component filters the orders based on the current storefront and the current effective account. The current effective account is the account that the user is currently acting on behalf of, which can be different from the user's own account. The component does not show orders placed in other storefronts or related to other accounts, even if the user has access to them. Therefore, the correct answer is A. Orders placed in the current storefront and related to the current effective account. The other options are incorrect because they do not match the criteria of the component.Reference:B2B Commerce Developer Guide,Show the Order List Widget

The correct answer for what is true about mapping custom fields from Cart to Order Summary is that the automatic Cart to Order mapping of custom fields can be disabled. A custom field is a field that is added by a developer or an administrator to an object to store additional information or data. A Cart is an object that represents a collection of products and charges that a customer intends to purchase in the storefront. An Order Summary is an object that represents a confirmed purchase of products and charges by a customer in the storefront. A Cart can be converted to an Order Summary when the customer completes the checkout process and confirms their order. By default, Salesforce B2B Commerce automatically maps custom fields from Cart to Order Summary when converting a Cart to an Order Summary. This means that any custom fields that exist on both Cart and Order Summary objects with identical API names and data types will have their values copied from Cart to Order Summary during the conversion. The automatic Cart to Order mapping of custom fields can be disabled by setting the B2BCommerce.CartToOrderMappingEnabled custom setting to false. This will prevent any custom fields from being copied from Cart to Order Summary during the conversion. A custom field must exist in the Cart and Order Summary objects only to be mapped successfully is not true, as it is not the only requirement for mapping custom fields from Cart to Order Summary. The custom fields must also have identical API names and data types, and the automatic Cart to Order mapping of custom fields must be enabled. All data types are supported for custom fields to be mapped from Cart to Order is not true, as some data types are not supported for mapping custom fields from Cart to Order Summary. The supported data types are Boolean, Date, DateTime, Double, Integer, Long, Percent, String, and TextArea. There is a limit of 25 custom fields on a Cart that can be mapped to Order is not true, as there is no such limit for mapping custom fields from Cart to Order Summary. Any number of custom fields that meet the mapping requirements can be mapped from Cart to Order Summary. Salesforce Reference: [B2B Commerce Developer Guide: Custom Field Mapping], [B2B Commerce Developer Guide: Cart Object], [B2B Commerce Developer Guide: Order Summary Object]