I try to use it .
When I do this :
~~~
module.exports = function getShortMessages(messages) {
function smallerfifty(element) {
return element.length > 50;
}
return messages.filter(smallerfifty);
}
~~~
I see a empty array.
Op dinsdag 20 januari 2015 17:30:56 UTC+1 schreef Adrien Risser:
> 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]
> <javascript:>> 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
>>
>>
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>
>
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> Adrien Risser,
> Freelance Node.js Consultant
> M. +33 6 59 60 32 58
>
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