title: How to append current date into existing JSON file?
body: <p>I'm using vscode<br/>
  I have below format of JSON file</p>
  <pre><code>{
      &quot;appointments&quot;: [
          {
              &quot;date&quot;: &quot;the date I want to add into&quot;,
              &quot;time&quot;: &quot;12pm&quot;
          }
      ]
  }
  </code></pre>
  <p>I want to add the date into my JSON file</p>
  <p><strong>Expected:</strong></p>
  <pre><code>{
      &quot;appointments&quot;: [
          {
              &quot;date&quot;: &quot;4-11-2021&quot;,
              &quot;time&quot;: &quot;12pm&quot;
          }
      ]
  }
  </code></pre>