title: Get the first key of a javascript object
body: <p>A very basic question, but I can't find the solution :</p>
  
  <p>I have a jquery object (given in <code>console.log</code>):</p>
  
  <pre><code>{ 
      id_ship: "1",  
      id_company: "1",  
      code: "DE",  
      // other properties...
  }
  </code></pre>
  
  <p>I just want to get the first key on the object. In this case, i want to obtain <code>id_ship</code></p>
  
  <p>Thank you in advance</p>