node.js – Javascript loop reference

I\’am programming in node.js and i run into a small problem what is caused by some strange pass by reference problem.

i use the following code:

for(j in groups){
  console.log(j, somefunction(groups[j]))
}

inside of the function some funky things are done with the data but afterwards i get the following as result:

3 data
3 data
3 data
3 data
3 data
3 data

instead of

1 data
2 data
3 data
4 data
5 data
6 data

but it keeps the correct amount of result..

Rating: 4 out of 5 based on 3 ratings

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