What is event bubbling in Salesforce?
Bubble. The component that fired the event can handle it. The event then bubbles up from the source component to the application root. The event can be handled by a component in the containment hierarchy that receives the bubbled event.
How do you open an event in lightning component?
To create a component event in salesforce, navigate File -> New -> Lightning Event in developerconsole. Name the event, enter the description and click submit to create lightning event. The attribute type is the one that will differentiate Component event from Application event. The events can be fired from controller.
How does the bubble phase work in Lightning?
Bubble Phase (Default): The source component, which is the innermost component fires the event. Now when the event is generated, it travels up its hierarchy until it reaches the outermost component which is also the owner of the component. This is called bubbling.
How does event propagation work in Salesforce Lightning?
Simply think of the event’s path as starting with your component and then moving to its parent, and then grandparent, and so on. Event targets don’t propagate beyond the shadow root of the component instance. From outside the component, all event targets are the component itself.
How are Bubbling lightning events similar to JavaScript events?
Bubbling Lightning events are similar in concept to JavaScript events in that events are heard up through the component’s parents but not siblings. One difference from DOM events is it is the component hierarchy and not the DOM hierarchy. Confused? Consider this: HTML example with an outer DIV element wrapping a P wrapping a BUTTON element.
How to create a component in lightning event?
Events all start with cre a ting a Lightning Event (in the Developer Console: New > Lightning Event; in SFDX: sfdx force:lightning:event:create ). To get it to bubble right you want to set type=“COMPONENT”. And then you add the fields you want to pass along as payload.