jquery on element change

You can apply any one approach:

$("#Input_Id").change(function(){   // 1st
    // do your code here
    // When your element is already rendered
});


$("#Input_Id").on('change', function(){    // 2nd (A)
    // do your code here
    // It will specifically called on change of your element
});

$("body").on('change', '#Input_Id', function(){    // 2nd (B)
    // do your code here
    // It will filter the element "Input_Id" from the "body" and apply "onChange effect" on it
});

$("select [name='element_name']").change(function(){
	// condition goes here
});

$("input").change(function(){
  alert("The text has been changed.");
});

$( "select" )
  .change(function () {
    var str = "";
    $( "select option:selected" ).each(function() {
      str += $( this ).text() + " ";
    });
    $( "div" ).text( str );
  })

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