Javascript/JQuery event arguments. I don't understand what this 'e' argument is or does

Question

JQuery:

this.saveButton.click(function (e) {
    scope.saveForm();
});

This is a very simple line of JQuery that binds the .click() event to the saveButton object and calls a saveForm function when the event is fired.

When this event is called, what is 'e'? I don't think it is ever used.

Answer 1

The e can be used to obtain specific information about the click (left, right or center; coordinates clicked; DOM object clicked on), but this specific code sample doesn't use it.

See http://api.jquery.com/category/events/event-object/ for details about what's available.