title: Chrome and probably Opera sort object properties automatically
body: <p>Problem is: Chrome automatically sorts properties of object.</p>
  
  <p>If I have an object like:</p>
  
  <pre><code>var obj = {4: "first", 2: "second", 1: "third"};
  </code></pre>
  
  <p>then when I do next:</p>
  
  <pre><code>for(var i in obj) {
      console.debug(obj[i]);
  }
  </code></pre>
  
  <p>I see next:</p>
  
  <p><code>third</code>
  <code>second</code>
  <code>first</code></p>
  
  <p>but expect:</p>
  
  <p><code>first</code>
  <code>second</code>
  <code>third</code></p>