title: Nested For loop for initializing array of arrays for Javascript
body: <p>I have a very simple part of my program here that's having a problem... 
  The elements in the array 'population' are also an array.. having 28 random numbers each 'temp' array that is being loaded to the array population. My problem is that the array 'population''s somehow have all the same arrays saved in it, it's like its being override every loop. Ive spent so much time in this very simple problem, is this some kind of bug?? The commented 'alert' is used to check the element 0 and 1 of the population. and somehow it's really being overriden every loop so every temp elements in the population array is all the same. Please help me.. </p>
  
  <pre><code>var population[];
  function init_population(){   
      temp = [];
      //Math.floor(Math.random()*8);
      for(i=0;i&lt;10;i++){
          for(j=0;j&lt;28;j++)
          temp[j] = Math.floor(Math.random()*8);
          population[i]= temp;
      //alert("population[0] = " +population[0] +" and population[1] = " +population[1]);
      }
  }
  
  init_population();
  </code></pre>