title: Convert JSON data to Double in Swift
body: <p>I receive the following JSON response:</p>
  
  <pre><code>{
    "id": 1,
    "value": 519.6365
  }
  </code></pre>
  
  <p>But when I convert the <code>value</code> to <code>Double</code>, I get: <code>519.63649999999996</code></p>
  
  <p>How to keep the original value? (without rounding it)</p>