@marcel,
Why Object.create(null) rather than {}? You'll get a null prototype instead
of Object.prototype but that's often irrelevant. On the other hand you may
pay a price for it. I just re-run the benchmark and Object.create is 40
time slower than {} on V8 (chrome). On firefox they are equivalent!
http://jsperf.com/object-create-null-vs-literal
On Sunday, June 17, 2012 5:46:05 AM UTC+2, vitoa wrote:
>
> Tanks a lot for all help :)
> This var table = Object.create(null); and Object.keys(table) saved my
> life
> All my algorith was repalced by a simple table[line[0]]=line;
> Love nodejs and all help u give to me
>
> I have some question about eficiency? does this way off implemeting
> algortithm eficient in cpu eat?
>
> What do you mean wirh ""size" of an object like this is NOT a constant
> time operation"
>
> This table[line[0]]=line; is used frequently in time there is data on
> serial port serial.on('data', function ).....
> I receive like 6 or 7 data each 3 seconds, 40bytes for each data
> contaning this unique id and values to repalce or add to table
>
> On future there will be much more data id's, because this is a ZigBee
> network ..that could receive up to 65000 diferent id's... but for
> begining this works perfect
>
>
> Best regards nodejs guys,
> Vitor
>
>
>
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