Contents
- 1 How do you make a lightning component dynamically?
- 2 How do you handle an event in lightning component?
- 3 How do you use interface in lightning component?
- 4 How to create and destroy Lightning components dynamically?
- 5 How to prevent lightning button from submitting Form?
- 6 How to get the name of an event in Lightning?
How do you make a lightning component dynamically?
Create a component dynamically in your client-side JavaScript code by using the $A. createComponent() method. To create multiple components, use $A. createComponents() ….Syntax
- cmp —The component that was created.
- status —The status of the call.
- errorMessage —The error message if the status is ERROR .
How do you handle an event in lightning component?
Handling Component Events 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.
What are the events in Lightning 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.
- Component Event Propagation.
- Create Custom Component Events.
- Fire Component Events.
- Handling Component Events.
How do you use interface in lightning component?
Lightning Interfaces uses to allow a component to be used in different contexts, or to enable your Lightning component to receive extra context data. A Lightning component can use multiple interfaces. Interfaces that user in component have an effect only in Lightning Experience and the Salesforce app.
How to create and destroy Lightning components dynamically?
Sometimes it is required to create the lightning component at runtime and destroy them. In order to instantiate any lightning component dynamically in the client-side JavaScript code, use $A.createComponent () and to create multiple components, use $A.createComponents ().
How to use event handler in Lightning tab?
The lightning:tab component enables you to obtain a reference to the target component when it becomes active using the onactive handler. Clicking the component multiple times invokes the handler once only. Some components provide event handlers to pass in events to child components, such as the onselect event handler on the following components.
For example, you can prevent a lightning:button component from submitting a form when it’s clicked. You can resume a paused event in the capture or bubble phase only. For more information, see: If the event has already been fired, setting a parameter value has no effect on the event.
How to get the name of an event in Lightning?
event.getSource () helps you determine which component fired an event. Let’s say you have several buttons that reuse the same onclick handler. To retrieve the name of the button that fired the event, use event.getSource ().get (“v.name”).