Lightning Aura Components Developer Guide

What Is the Lightning Component Framework?
Quick Start
Creating Components
Using Components
Communicating with Events
Communicating Across the DOM with Lightning Message Service
Creating Apps
Styling Apps
Developing Secure Code
Using JavaScript
Working with Salesforce Data
Testing Components with Lightning Testing Service
Debugging
Performance
Reference
Component Library
System Tag Reference
JavaScript API
$A namespace
Action
AuraLocalizationService
Component
Event
fire()
getEventType()
getName()
getParam()
getParams()
getPhase()
getSource()
getSourceEvent()
getType()
pause()
preventDefault()
resume()
setParam()
setParams()
stopPropagation()
Util
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preventDefault()

Prevents the default phase execution for this event. This method throws an error if it’s called in the "default" phase.

Signature

preventDefault()