Usually you would use callbacks on any library call that needs them. If you have your own function that calls something async then it should have a cb also, unless you don't care whether it finished or not or when.
There are lots of non-io async lib aync functions such as setTimeout. On Tue, Apr 9, 2013 at 3:02 PM, Mil Werns <[email protected]> wrote: > I have a simple question: When should I use callbacks? > > Currently, I'm only using callbacks in I/O cases (file, database and > network access). > My application has to iterate over a lot of big arrays and combines this > data to new objects. I'm doing this with a standard (synchronous) for-loop, > because this task needs only CPU power. So there would be no benefit to use > an asynchronous call. > > Is this assumption correct? > Can you please give me other examples for useful callbacks other than > those mentioned above? > > Thank you > > -- > -- > 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.
