Awesome! Thanks, Rick. -Chaoran
On Friday, October 4, 2013 3:54:50 PM UTC-5, Rick Waldron wrote: > > > > > On Fri, Oct 4, 2013 at 12:09 PM, Chaoran Yang > <[email protected]<javascript:> > > 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? >> > > Yes, the current implementation is synchronous and yes that's ok (and > totally normal/expected) > > console.log(1); > emitter.on("end", function() { > console.log(3); > }); > console.log(2); > emitter.emit("end"); > console.log(4); > emitter.removeAllListeners(); > console.log(5); > > Will output: > 1 > 2 > 3 > 4 > 5 > > > > > >> >> 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? >> > > Yes, this is documented: > http://nodejs.org/api/events.html#events_emitter_addlistener_event_listener > > > Rick > > -- -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en --- You received this message because you are subscribed to the Google Groups "nodejs" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
