How to Checkin the Page in SharePoint 2013 using Javascript

After the Success of the Check in, the Page should re-load and make sure that its been checked in.

Steps:

1. Open your SharePoint site  and add a CEWP.
   
   
2. Then Copy the below Code and  call this function on button click. 

<script type="text/javascript">

function checkIn_Success(sender, args)
          {
              window.location.reload();
          }
          function checkIn_fail(sender, args)
          {
            alert('Checkin Failed');
          }
          function checkIn()
          {
              var ctx = SP.ClientContext.get_current();
              var web = ctx.get_web();
              var page = web.getFileByServerRelativeUrl(window.location.pathname);

                var listItem = page.get_listItemAllFields();
//We can set any value to any of the property by the below lines.
                //listItem.set_item('PublishingPageContent', '{Updated with ECMA}');
                listItem.update();

              page.checkIn();
              page.publish();
              ctx.executeQueryAsync(Function.createDelegate(this, checkIn_Success),Function.createDelegate(this, checkIn_fail));
          }
</script>

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