Joining Objects from TW Arrays into one Array?

Joining Objects from TW Arrays into one Array?

Hey guys,
I am using getJSON in a for loop to collect data. Each response contains an array with multiple objects.

  1. for (var i = 0; i < index.length; i++)
  2. {
  3.       $.getJSON("url" + index[i] + "/lists", function (data){
  4.              console.log(data);     
  5.       });
  6. }
the console log  will then look something like 
  1. > [Object, Object]
  2. > [Object, Object, Object]
Now i want to join these two Arrays into ONE new Array...
  1. >      [Object, Object, Object, Object, Object]
I tried to declare a new Array and used .push inside $.getJSON but this doesn't seem to work because it will store Two Arrays containing 2 and 3 Objects..

What am I doing wrong?
Thank you very much