title: jQuery datatable - using column index, check if a column in jQuery datatable is visible/present
body: <p>Since <a href="https://stackoverflow.com/questions/9334690/how-to-determine-if-a-column-is-visible-or-not-on-a-jquery-datatable">my earlier post</a> did not get any response, I am reposting this.</p>
  
  <p>I am using jQuery's datatable and I occasionally toggle the visiblity of some of the columns using the below code</p>
  
  <pre><code>tableId.fnSetColumnVis(0, false);
  </code></pre>
  
  <p>Having done that, there are some other controls on the UI that I have to toggle the visibility for. So, I need to check (Say on page load) if the column with 0 index is visible/hidden/present - whatever. I am looking for something like $("#tableId").isColumnVisible(columnIndex); </p>
  
  <p>Please advise. Thanks</p>