javascript - Is the addEventListener method part of the document object? -


i'm not sure addeventlistener comes assume part of document object. if so, code document.getelementbyid('displaytodosbutton').addeventlistener work same var displaytodosbutton = document.getelementbyid('displaytodosbutton');?

 var displaytodosbutton = document.getelementbyid('displaytodosbutton');      displaytodosbutton.addeventlistener('click',function(){       todolist.displaytodos();     });

it can object supports events: "the event target may element in document, document itself, window, or other object supports events (such xmlhttprequest)."

see https://developer.mozilla.org/en-us/docs/web/api/eventtarget/addeventlistener

document.getelementbyid('displaytodosbutton').addelementlistener not work, because method's called addeventlistener. other that, you're free save reference element in variable or directly use when returned .getelementbyid(). result won't different.


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