AuraAttributes
Binding attribute in Application <aura:application extends = "force:slds" > <aura:attribute name = "value" type = "String" default = "World" /> Hello {!v.value}! </aura:application> O/p Hello World ! Hello World example sending value from js to server as param and getting output. Apex public with sharing class helloWorldwithParam { @AuraEnabled public static String serverEcho ( String firstName ) { return ( 'Hello from the server, ' + firstName ); } } Application <!-- Adding classname of apexclass --> <aura:application controller="helloWorldwithParam" extends="force:slds"> <aura:attribute name="firstName" type="String" default="...