javascript - Index loop does not change

I'm trying to gather tweets from twitter, on console if I choose 5 tweets to gather it displays every one of them but if I choose the mysql module to insert them into a database it inserts the last line 5 times.

Can't figure out how to resolve it.

Asking again, had no luck in the last 3 hours making this script work. Was pointed out to for loop does not change index inside function . Can someone please help me fix this problem?

for (var i = 0; i < data.length ; i++) { // get all the messages from username, devfined in search term
  var retweetId_str = data[i].id_str; // id_str = id not rounded more precise

  console.log('id_str:', retweetId_str); // 

 //id_str: 656087507604402176
 //id_str: 656063345192255488
 //id_str: 656063056947126272
 //id_str: 656062911530606592
 //id_str: 656062750574182400     
  con.query('SELECT retweetid_str FROM droid_retweets WHERE retweetId_str=?', retweetId_str, function(error,result){ 
    console.log('id_str:', retweetId_str);         


    //id_str: 656062750574182400
    //id_str: 656062750574182400
    //id_str: 656062750574182400
    //id_str: 656062750574182400
    //id_str: 656062750574182400
  }); 
} // for close

Answer

It's because of closures in javascript.

This answer should help explain it and there are a couple ways to handle it.

The easiest being to use .forEach()

data.forEach(function(d) { // get all the messages from username, devfined in search term

            var retweetId_str = d.id_str; // id_str = id not rounded more precise
            console.log('id_str:', retweetId_str); // 
           con.query('SELECT retweetid_str FROM droid_retweets WHERE retweetId_str=?', retweetId_str, function(error,result){ 

           console.log('id_str:', retweetId_str);         

          }); 

    }); // for close