just changing names

find-the-block.js

// block-lambda proponents: what does this program do?

function in_canadian (speak_cb) {
  add_eh = {|y|
    return y + ", eh?"
  }

  // now here comes a bunch of code.
  // imagine there are 50 lines here

  speak_cb(add_eh)

  // now a bunch more stuff.
  // eventually:

  add_eh("How bout them 'nucks")

  // then a bunch more stuff
  // ending with:

  return "Aboot"
}

var message = in_canadian(function (accent) {
  alert("before")
  accent("It's cold outside")
  alert("after")
})

alert(ret)