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Matheus Coelho 1Matheus Coelho 1 

Where do i find documentation about components, events and helpers (the parameters inside the action handlers)

Example: 
action : function( component, event, helper)


I would like to know if there's a website where i can see all the methods available for component, event and helper... especially for component and event since i'm studying the basics of Aura Components...

There was a challenger that i had to set some values on variables like 

var btn = event.getSource();


but i didnt know i could use btn.set() method, for instance...

I appreciate already all the help!

Best Answer chosen by Matheus Coelho 1
Sai PraveenSai Praveen (Salesforce Developers) 
Hi Matheus,

We have the following trial head modules for Aura components and events as below.

https://trailhead.salesforce.com/content/learn/modules/lex_dev_lc_basics

https://trailhead.salesforce.com/content/learn/modules/lex_dev_lc_basics/lex_dev_lc_basics_events

If this solution helps, Please mark it as best answer.

Thanks,