What is the use of event parameter in function(event)

Hello 

 

Well Jquery event call your fuction and pass event object 

 

After that , there is no need to declare any variable inside function parameters 

 

Event object contains all the basic things about specific event you have triggered , and by using parameter event you can access all the parameters of the event 

 

And if you want just value than you can use like :

You can refer from below links :

 

http://api.jquery.com/category/events/event-object/

 

https://developer.mozilla.org/en-US/docs/Learn/JavaScript/Building_blocks/Events

 

Thanks