title: how to set default value to JSON array
body: <p>Please help me to do this!</p>
  <p>I'm getting data array from database by month. The problem I'm having is that I'm fetching data like <em><strong>this</strong></em></p>
  <pre><code>[{January: 6}, {February: 2}, {October: 7}, {December: 4}, {November: 5374}]
  </code></pre>
  <p>wherever there is null I don't even get any value which causes problem for me to work so I want data like <em><strong>this</strong></em></p>
  <pre><code>[{January: 6}, {February: 2}, {March: 0}, {April: 0}, {May: 0}, {June: 0}, {July: 0}, {August: 0}, {September: 0}, {October: 7}, {November: 5373}, {December: 4}]
  </code></pre>
  <p>but data is fetched dynamically from database which is giving me only values which are more than 0. I just want to get all months with default values as 0.</p>