javascript - jquery function not catching dynamically generated id -

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i have table rows generated ajax query response like:

var inp = '<input id="new_po_qty" style="text-align:center" type="text" value="1">'; $('<tr id="new_po_item_row">').html('<td style="text-align:center">' + sku_id + '</td><td style="text-align:center">' + inp  + '</td><td id="new_po_cp" style="text-align:center">' + cost_price  + '</td><td id="new_po_total_cp" style="text-align:center">' + cost_price  + '</td>').appendto('#new_po_body');

now wrote jquery function catch changes on inp variable in table row. jquery function not catching changes in input box.

jquery function:

$('#new_po_qty').on('change paste', function(){     alert('changes made.');     $.niftynoty({         type:"primary",icon:"",title:"start adding products.",container:"floating",timer:5000     }); });

what doing wrong function?

use event delegation:

$(document).on('change paste', '#new_po_qty', function(){     alert('changes made.');     $.niftynoty({         type:"primary",icon:"",title:"start adding products.",container:"floating",timer:5000     }); });

see jquery .on() docs.


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