how to have jqueery listen for chnage on elemnt code example

Example 1: jquery on element change

// On element change.
$('mydiv').bind('DOMSubtreeModified', function () {
  console.log('changed');
});

Example 2: jquery detect textarea change

$('#myTextAreaID').on('input propertychange paste', function() {
    //my Textarea content has changed
});