<aura:attribute name="selectedObj" type="Object" default="null"/> but this gives me selectedValue as a String, and not comparing with null in lightning javascript controller/helper code. let selectedObj = component.get ('v.selectedObj');
Full Answer
How to develop aura components using Salesforce CLI?
To develop Aura components, use Salesforce CLI to synchronize source code between your Salesforce orgs and version control system. Alternatively, you can use the Developer Console. You must enable My Domain in your org. When My Domain isn’t deployed in your org, user interface controls related to Aura components may be hidden or inactive.
What are the optional attributes of the aura component tag?
The aura:component tag has the following optional attributes. Indicates whether the component can be used outside of its own namespace. Possible values are public (default), and global. The server-side controller class for the component in the format namespace.myController or myController if using the default namespace.
Can I use Visual Studio Code with Salesforce?
We recommend using Visual Studio Code because its Salesforce Extension Pack provides powerful features for working with Salesforce CLI, the Lightning Component framework, Apex, and Visualforce. If you choose to work with Visual Studio Code, install it and the Salesforce Extension Pack. To create and deploy an Aura Component to your org:
How do I create an aura component in Lightning?
Create an Aura component. Open the Command Palette and select SFDX: Create Lightning Component. Enter a name for your component, such as myComponent. Press Enter. Enter the directory for your component or press Enter to accept the default. The default directory is force-app/main/default/aura.
How do I change the aura component in Salesforce?
Create and Edit Aura ComponentsCreate and edit Aura component bundle resources in the Developer Console.Create a “harness” application for testing components in development.Perform the edit and reload cycle for previewing components in development.List the different resources that make up an Aura component bundle.
How do you use set in Aura component?
Aura:set can be used to set the value of an attribute on the component reference. In case of
How do I destroy Aura components in Salesforce?
If you create a component dynamically in JavaScript and that component isn't added to a facet ( v. body or another attribute of type Aura. Component[] ), you have to destroy it manually using destroy() to avoid memory leaks.
How do I use aura component in Salesforce?
Create and Add an Aura Component to the Record PageIn the Developer Console, select File | New | Lightning Component.For the component name, enter MyContactList .Check Lightning Record Page and then click Submit.Add a reference to the Apex controller, controller="MyContactListController" , on the aura:component tag.More items...
What is C and V in Aura component?
Value providers are a way to access data. Value providers encapsulate related values together, similar to how an object encapsulates properties and methods. The value providers for a component are v (view) and c (controller).
How do I declare an attribute in Aura component?
Lightning Component Attribute (aura:attribute) are like member variables on a class in Apex....What is lightning Component Attribute : Aura:attributeEach attribute must have “name” and “type“.To make attribute as required use required=”true” in the tag.To make default value use default=”string or integer“.
How do you make component dynamically in Aura component?
Create a component dynamically in your client-side JavaScript code by using the $A. createComponent() method. To create multiple components, use $A....The callback has three parameters.cmp —The component that was created. ... status —The status of the call. ... errorMessage —The error message if the status is ERROR .
How do you close a lightning component?
To close a quick action panel, usually in response to completing or canceling the action, run $A. get("e. force:closeQuickAction").
How do you destroy LWC components?
Component[]), you have to destroy it manually using Component. destroy() to avoid memory leaks. Now in LWC you cannot create components dynamically yet. Thus there is no destroy as of now.
What is the difference between lightning component and aura component?
Salesforce Lightning Component is a user interface (UI) based framework for developing single-page mobile/desktop/web-based applications. Using the Lightning Component along with these tools, you can customize and deploy new apps in mobile devices easily and effortlessly. Aura components are reusable units of the app.
How do you expose aura component to community page?
Navigate to Setup > App Setup > Customize > Communities > Communities Settings. On the Communities page, select the Enable Community Workspaces check box. In the Domain name field, enter the domain name for the community and click Check Availability. Click Save.
How do I invoke aura component from flow?
Understand the codeWe used
What are components in aura?
Components are the functional units of Aura, which encapsulate modular and reusable sections of UI. They can contain other components or HTML markup. The public parts of a component are its attributes and events. Aura provides out-of-the-box components in the aura and ui namespaces.
Is every component part of a namespace?
Every component is part of a namespace. For example, the button component is saved as button.cmp in the ui namespace can be referenced in another component with the syntax <ui:button label="Submit"/>, where label="Submit" is an attribute setting.
How to develop Aura components?
To develop Aura components, use Salesforce CLI to synchronize source code between your Salesforce orgs and version control system. Alternatively, you can use the Developer Console.
What code editor is used for Salesforce?
Use your favorite code editor with Salesforce CLI. We recommend using Visual Studio Code because its Salesforce Extension Pack provides powerful features for working with Salesforce CLI, the Lightning Component framework, Apex, and Visualforce.
How to authorize a dev hub?
Open the Command Palette and select SFDX: Authorize a Dev Hub Org. A browser window opens with a Salesforce login page.
How to retrieve changes in Dev Hub?
If you make changes to your component via the Developer Console in the Dev Hub org, use the force:source:retrieve command to retrieve your changes. The source you retrieve overwrites the corresponding source files in your local project.
What is the default directory for Force App?
Enter the directory for your component or press Enter to accept the default. The default directory is force-app/main/default/aura. You should see a similar directory like this.
How to open command palette in Visual Studio?
In Visual Studio code, open the Command Palette by pressing Ctrl+Shift+P on Windows or Cmd+Shift+P on macOS.
Can you develop Aura components in scratch?
You can develop Aura components in scratch orgs and non-scratch orgs. A Dev Hub org enables you to create scratch orgs. Configure an org as a Dev Hub by following the instructions at Salesforce DX Developer Guide.
