jquery - Trying to hide submit if overdraft -

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i trying determine if table row on page (including ajaxed content) has class of "overdraft" , if on page does, hide button. code using isn't working. don't know if code using takes account dynamic data or if runs @ page-load.

(function() {     if( $('tr').hasclass('overdraft'){ $('#btnsamsubmit').hide(); } // end if })(); 

if( $('.overdraft').length > 0) {     $('#btnsamsubmit').hide(); }

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