class Blah
    constructor:()->
        @test = "Hello!"

    bindy:()->
        $(window).bind 'some_event',@_myHandler

    _myHandler:()->
        // "this" is NOT the scope you would expect. "this" refers to the event object
        // this will complain that test is undefined
        alert @test

class Blah2
    bindy:()->
        ths = this
        @_myHandler = ()->
            // this will work correctly
            alert ths.test

        $(window).bind 'some_event',@_myHandler