title: How to define date of today in json file? Is there any way for this?
body: <p>I have a JSON file, it contains date and id:</p>
  
  <pre><code>[{
      "date": "2018-08-08",
      "id": 3
  }]
  </code></pre>
  
  <p>I want to define value of date as <code>Date.now()</code>, for example:</p>
  
  <pre><code>[{
      "date": Date.now(),
      "id": 3
  }]
  </code></pre>
  
  <p>How can I do this or can it be done?</p>
  
  <p><strong><em>Note: I'm making the insert use this json file, 
  I create json file as separate files,<br>
  example: x.json, y.json</em></strong></p>