where this is a concern you should just use once. the request 3.0 branch is doing so, as are several other projects i've written, and it works quite well.
https://npmjs.org/package/once -Mikeal On Oct 1, 2013, at 10:51AM, Oleg Slobodskoi <[email protected]> wrote: > The answer depends on the reason why the callback called multiple times, > possible are: > - by design > - when multiple parallel running functions callback > > > The last one could happen f.e. one of them fails and calls back with an > error, the other one calls back without error despite of the errored other > one. In this case you can't ignore either the first one or the second one. > > I had this situation often when dealing with event emitters and transforming > the results into single callback style. > > The only correct way is to fix the function which is causing this error. > > > Best, > Oleg Slobodskoi > > http://www.facebook.com/oleg.slobodskoi > https://www.xing.com/profile/Oleg_Slobodskoi > https://twitter.com/oleg008 > https://github.com/kof > > Am 01.10.2013 um 07:17 schrieb jeevan kk <[email protected]>: > >> I am using different 3rd party modules in my project. I have seen, in some >> odd situations the 3rd party module which I am using is calling the callback >> multiple times. >> >> Is there any general approach which I can follow so avoid such situations. >> >> -- >> -- >> 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. > > > -- > -- > 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. -- -- 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.
