title: jquery get object value
body: <p>How do I get get the value <code>url</code> from this string:</p>
  
  <pre><code>[{
      "url": "https://www.filepicker.io/api/file/WGS4Wmkk",
      "filename": "4827889.jpg",
      "mimetype": "image/jpeg",
      "size": 53113,
      "key": "be7BxONVHe_48278891840.jpg",
      "isWriteable": false
  }]
  </code></pre>
  
  <p>With jquery or regular javascript</p>