be careful Rick, if no slice() then you might loose data from original
Array. that's why I used slice ;-)
var a = [1, 2, 3];
a.filter(function(v,k,a){a.length=0});
alert(a); // "" empty
On Tue, Nov 13, 2012 at 3:38 PM, Rick Waldron <[email protected]>wrote:
>
>
>
> On Tue, Nov 13, 2012 at 3:33 PM, Brendan Eich <[email protected]> wrote:
>
>> Andrea Giammarchi wrote:
>>
>>> wait, I might have misunderstood your problem ... so you want to stop
>>> iterating, right ?
>>>
>>> When that is the case, you can simply drop the iteration like this:
>>>
>>> myArray.slice().filter(**function (value, index, original) {
>>> // do your stuff
>>> if (conditionSatisfied) {
>>> original.length = 0;
>>> }
>>> });
>>>
>>> there, you can break the iteration as easy as that :-)
>>>
>>
>> Making a copy and then mutating its length seems worse than using some,
>> though.
>
>
> Definitely, but it works without the slice(), too:
>
> var filtereds, items, limit, k;
>
> items = new Array(1000).join("-").split("");
> limit = 3;
> k = 0;
>
> filtereds = items.filter(function( val, i, orig ) {
> if ( true ) {
> if ( ++k === limit ) {
> orig.length = 0;
> }
> return true;
> }
> });
>
> console.log( filtereds );
> // [ '-', '-', '-' ]
>
>
> Rick
>
>
>
>>
>>
>> /be
>>
>>
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>> es-discuss mailing list
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>>
>
>
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