Edge Preview Resources: Runtime API v0.1.4
In Edge, you can create triggers that will execute your code at a specific position on a Timeline. You can also bind code to the document, Timeline and specific Elements. Your code is called in the context of a Symbol even when handling Element actions. The current symbol is stored in the “this” variable as well as an argument “sym.” You can call Symbol APIs like this.play() or sym.play(). The “sym” variable is more durable when you use things like setTimeout.
When your code is called from Edge it is passed an Event object “e” that can be used to learn more about the context in which the handler is being called. Edge Preview Resources: Runtime API v0.1.4 Download.