> It would be helpful to see some more code, for example, is `query` ever
> exposed in the outside scope? Where is it referenced for usage rather than
> population?

> On Tuesday, June 26, 2012 4:43:26 AM UTC-5, kuno wrote:

>> This error occurs on node 0.6.19, not sure be fixed on 0.8 or not.

>> suppose I have a nest function like this:
>> <=======================================
>> function outer() {
>> var query = {};
>> query.startkey = [];
>> query.endkey = [];

>> query.startkey.push('report');
>> query.startkey.push({});

>> var keysCallback =  function(result) {
>>      query.startkey.push(result.key1);
>>      query.startkey.push(result.key2);
>>       ......
>> }

>> getResultFunction(args, keysCallback);
>> }
>> ======================================>
>> most time, it works well, but in some very very rare chance, I got the
>> error like this:

>> <=======================================

>> Object ["report",{}] has no method 'push'

>> ========================================>
>> if we inspect it, it'll tell that query.startkeys is an object with the
>> array literal notation '["report",{}]', but not a real array.

>> Since it occurs inside the inner keysCallback, but query.startkey was
>> defined explicitly in the outer function, and works well.
>> This make methink maybe there are some runtime errors, during the runtime
>> lookup the query.startkeys from the scope of keysCallback to the outer
>> function.

>> But I am not a expert on v8, so this is just a suspection. I'd like to
>> hear your opinion about this.

>> --thanks

>> kuno