The Order of Multiple Event Listeners

Question

I\'ve come across an oddity while using Prototype to handle click events. If you click the button in the code below, it will trigger three alerts: \'Click 1\', \'Click 2\' a

Answer 1

As a formatted comment of @T.J. Crowder's answer, I tested which modern browsers actually trigger the listeners in registration order.

2016-10-06: The results are that all following browsers do: chrome 53, firefox 49, safari 9, opera 40, ie 11 and edge 13 via virtualbox on mac host.

The code of my test can be found here: https://github.com/lingtalfi/browsers-behaviours/blob/master/listeners-execution-order/listeners.md