on html change jquery code example

Example 1: jquery on element change

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

Example 2: change html using jquery

//Takes input from entire page and uses it to change the HTML of h1
$(document).keypress(function(event){
  $("h1").text(event.key);
});