how to create aura handler salesforce

Select File | New | Lightning Component to create an Aura component. In the New Lightning Bundle panel, enter helloWorld for the component name, and click Submit. This creates a new helloWorld component bundle, with two open tabs.

Full Answer

How do I create an aura component in Salesforce?

Select File | New | Lightning Component to create an Aura component. In the New Lightning Bundle panel, enter helloWorld for the component name, and click Submit. This creates a new helloWorld component bundle, with two open tabs. Close the helloWorld tab, and keep the helloWorld.cmp tab open.

What are the attributes of Aura handler?

Every aura:handler has attributes it needs to work: name and value (for component events), or event (for application events), and action. Name is a predefined name for system events like init or change. This tells aura:handler which event to attach to. Event specifies an event to attach, which might actually be a custom event.

How do I handle the aura valuerender event?

Handling the aura:valueRender event is similar to handling the init hook. Add a handler to your component's markup. In this example, the onRender action in your client-side controller handles initial rendering and rerendering of the component.

How do I create an aura component bundle?

Create 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. OK! Time to write some code! #finally!

What is Aura handler in Salesforce?

aura:valueInit - : Indicates that an app or component has been initialized. This event is automatically fired when an app or component is initialized, prior to rendering. The aura:valueInit event is handled by a client-side controller. A component can have only one tag to handle this event.

How do I create an aura Application in Salesforce?

Create Aura Components in the Developer ConsoleSo, let's write something. Select File | New | Lightning Component to create an Aura component. ... Select File | New | Lightning Application to create a new Lightning app. ... Indeed, the Developer Console has a number of features for working with Aura components.

How do you create an aura event?

Create a custom component event using the tag in a . evt resource. Events can contain attributes that can be set before the event is fired and read when the event is handled. Use type="COMPONENT" in the tag for a component event.

How do you handle event in Aura component?

A component event can be handled by the component that fired the event or by a component in the containment hierarchy that receives the event. The name attribute in must match the name attribute in the tag in the component that fires the event.

How do I deploy an aura component in Salesforce?

To create and deploy an Aura Component to your org:Create a Salesforce DX project. In Visual Studio code, open the Command Palette by pressing Ctrl+Shift+P on Windows or Cmd+Shift+P on macOS. ... Create an Aura component. ... Authenticate to your org. ... Deploy your files.

How do I create a lighting component in Salesforce?

Create a Component to Use in the Lightning App BuilderClick the gear icon ( ... In the Developer Console, select File > New > Lightning Component.Name the component IndicatorBadges , select Lightning Record Page, and select Submit.Replace the contents of the component with this code: ... Click File > Save.

What is Aura component in Salesforce?

Aura components are the self-contained and reusable units of an app. They represent a reusable section of the UI, and can range in granularity from a single line of text to an entire app. Events. Event-driven programming is used in many languages and frameworks, such as JavaScript and Java Swing.

How do I create a custom event in Salesforce?

To create an event, use the CustomEvent() constructor. To dispatch an event, call the EventTarget. dispatchEvent() method. The CustomEvent() constructor has one required parameter, which is a string indicating the event type.

What is Aura register event?

aura:registerevent is the notifier component and it declares that it may fire a particular event, it includes 'name' attribute which is relevant only to component event and is not used for application event. Other attribute is the 'type' which lets the component know which event would be fired.

What is the difference between component event and application event?

Component events can only be handled by components above them in the containment hierarchy so their usage is more localized to the components that need to know about them. Application events are best used for something that should be handled at the application level, such as navigating to a specific record.

In which language do you write aura components action handlers?

It uses JavaScript on the client side and Java on the server side.

How do you use an aura set?

Aura:set can be used to set the value of an attribute on the component reference. In case of , it can be used to set the value of attribute on . Here, for example, we will use aura:set to set the value 'buttonTitle' attribute of ui:button. Below Is a Snippet of code of Lightning Component.

What is component in Salesforce?

As a practical matter, a component is a bundle that includes a definition resource, written in markup, and may include additional, optional resources like a controller, stylesheet, and so on. A resource is sort of like a file, but stored in Salesforce rather than on a file system.

Is Salesforce DX a third party tool?

And, Salesforce Extensions for Visual Studio Code is an excellent third-party tool.