No, they are implementation-dependent. So unless events module will get "5
- Frozen" stability level, I wouldn't count on this hack to last forever.
But there's a good chance that it won't be changed in stable branch.
On Friday, October 4, 2013 8:09:40 PM UTC+4, Chaoran Yang wrote:
>
> Questions 1: Are event listeners always invoked synchronously?
>
> For example, If I do:
>
> event.on("end", function() {
> console.log("end");
> });
> event.emit("end");
> event.removeAllListeners();
>
> Does this code always prints "end" every time?
>
> Question 2: Are event listeners always invoked in the order of they are
> attached?
>
> For example, if I do:
>
> event.on('end', function() {
> console.log('end');
> });
> event.on('end', function() {
> event.removeAllListeners();
> });
> event.emit('end');
>
> Does this code always prints "end" every time?
>
> For all tests I ran, the answers to both of these questions are YES. But
> I'm not sure whether these are semantics I can rely on across difference
> versions of nodejs. Does nodejs provides these semantics guarantees, or are
> they implementation dependent?
>
> Thanks,
> Chaoran Yang
>
>
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