I like this pattern for making nice utilities available on the function prototype. IMO it's the "safest" proto to modify. It would be handy in modules that do other specific function-wrapping things, like memoizing, currying, throttling, etc. This opinion is probably ripe for sparking nerd fights though.
:Marco On Tuesday, October 1, 2013 10:53:28 AM UTC-7, Mikeal Rogers wrote: > > 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]<javascript:>> > 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] <javascript:> > >: > > 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] <javascript:> > To unsubscribe from this group, send email to > [email protected] <javascript:> > 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] <javascript:>. > 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] <javascript:> > To unsubscribe from this group, send email to > [email protected] <javascript:> > 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] <javascript:>. > 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.
