A way of explicitly reporting exceptions

Andrea Giammarchi andrea.giammarchi at gmail.com
Mon Jun 23 13:56:31 PDT 2014

As I've said, I haven't seen anyone mentioning the handleEvent approach
that's able to give you any info and error and stack you want whenever you
want it inside any of its listeners

// recycle one handler
// to handle errors too
var handler = {
  handleEvent: function (e) {
  click: function (e) {
  error: function (e) {
  _errors: []

  'click', handler

  'click', function () {

window.addEventListener('error', handler);


now click the page and see how it works.

You, owning such object, can check it anywhere you want through `this` or
direct reference and verify `._errors.length` and behave accordingly.

On Mon, Jun 23, 2014 at 1:50 PM, Boris Zbarsky <bzbarsky at mit.edu> wrote:

> On 6/23/14, 4:47 PM, Andrea Giammarchi wrote:
>> I am saying that if your requestAnimationFrame throws mine should keep
>> working without problems
> OK.  That's the current behavior, and no one is proposing changing that.
> The discussion is about allowing that while usefully reporting the thrown
> exception at the same time.
> -Boris
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