title: Object.defineProperty for IE
body: <pre><code>var o = {}; // Creates a new object
  </code></pre>
  
  <p>Example of an object property added with <code>defineProperty</code> with a data property descriptor</p>
  
  <pre><code>Object.defineProperty(o, "a", {value : 37,
                                 writable : true,
                                 enumerable : true,
                                 configurable : true});
  </code></pre>
  
  <p>How to implement for IE7-8?(with attributes writable,enumerable,configurable)</p>