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What is controller in lightning component?
For our purposes, for Lightning Components, a controller is a resource in a component bundle that holds the action handlers for that component. And action handlers are just JavaScript functions with a particular function signature.
What is the default sharing for Apex class?
If a class is not declared either with sharing or without sharing, then by default, such a class is executed in system mode, i.e. without sharing mode; and current sharing rules remain in effect- which means that if any other class that has sharing enforced, calls such a non-specified-sharing class, then the called or …
What is the Lightning component framework for JavaScript?
What Is the Lightning Component Framework? The framework supports client-side (JavaScript) and server-side (Apex) controllers. An event is always wired to a client-side controller action, which can in turn call an Apex controller action.
How to call client side method in Lightning component?
To call the server side method we need to create the instance of server side method in client side controller. 1). setParams () : To set the parameter of server side controller method. 2). setCallback (this, function (response) {}) : To perform the tasks when we get the response of server side controller method.
How to create a server side Lightning controller?
Use the Developer Console to create an Apex server-side controller. Use Apex only if you need to customize your user interface to do more than what Lightning Data Service allows, such as using a SOQL query to select certain records.
How to call apex controller method in Lightning component?
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