Filter is what you're looking for. https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Array/filter
On Tue, Jan 20, 2015 at 5:06 PM, Roelof Wobben <[email protected]> wrote: > Hello, > > I try to learn functional javascript by following the functonial workshop > of nodeschool. > > Now I have to filter out all the messages which lenght are shorter then > 50. > > So I thought this would work : > > ~~~ > > module.exports = function getShortMessages(messages) { > > function small_message(item) > > { return item.length < 50 ; } > > > messages.map(function(message) > > { return small_message(message) }) } > > but when I test it I see a empty array as answer > > Can someone explain where my thinking took the wrong path ? > > Roelof > > > -- > Job board: http://jobs.nodejs.org/ > New group rules: > https://gist.github.com/othiym23/9886289#file-moderation-policy-md > Old group rules: > 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 unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/nodejs/2bb9460e-96ef-4160-98e5-afe713f6ea96%40googlegroups.com > <https://groups.google.com/d/msgid/nodejs/2bb9460e-96ef-4160-98e5-afe713f6ea96%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- Adrien Risser, Freelance Node.js Consultant M. +33 6 59 60 32 58 -- Job board: http://jobs.nodejs.org/ New group rules: https://gist.github.com/othiym23/9886289#file-moderation-policy-md Old group rules: 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 unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/nodejs/CAKGrCFhq%2BFFN655s2A4QbJ5fmPUK%3DNxOU1h9cxRAPsLekJkEYg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
