Why is there an 'event' variable available without being defined when there was an event upstream?

Question

I stumbled across an odd behaviour today. Basically, I had a function bound to a knockout.js click event. The function was making use of the knockout event, but was not expl

Answer 1

It is something that got carried from the old version of IE, where the event object was not passed to the handler method instead it was set in the global context.

For backward compatibility IE still supports this model and chrome also has added support for this feature. But FF is not supporting it.

• Event object references