Event constants for Javascript?

Question

In Javascript I have code like:

document.addEventListener("mousedown", mouseDownHandler);

and occasionally I might fat finger something like:

document.addEventListener("mouzedown", mouseDownHandler);

And Javascript won't recognize that I'm a moron and I'll be confused why my handler isn't working.

Actionscript3 specifies event constants like so:

MouseEvent.MOUSE_DOWN // equiv to the String "mouseDown"

If I fat-finger a variable or constant then JS gets mad at me and I can solve the problem real quick. Does JavaScript have anything similar to to this or do I need to make my own JS pseudo-constants for event types?

Answer 1

There are no predefined constants/properties which can be used as to define an event for addEventListener.

Stripped original answer below (and in the revision history):
The Event object defined the following constants. Using Firefox 8.0, and the following code:

• alert(Object.keys(Event).map(function(name){return name + "\t" + Event[name]}).join('\n'))

Answer 2

Maybe use jQuery? Big switch for a small problem, but jQuery has aliased functions for a lot of JS handlers, and if you spell a function name wrong you'll definitely get an error.

That is,

document.addEventListener("mousedown", mouseDownHandler); // right
$(document).mousedown(mouseDownHandler); // right

document.addEventListener("mouzedown", mouseDownHandler); // wrong, no error
$(document).mouzedown(mouseDownHandler); // wrong, throws error