jQuery - Attach an event dynamically -


this question has answer here:

if create element class in jquery element wont include attached functions.

for example, in below code first of creating 2 different element in html , in (document.ready) assign change event class.

these 2 elements working properly. however, when click button, create new element has same class related event wont work element.

why happen? , how can attach events new element easily?

thanks in advance.

my code: 

<body>     <div class="main">         <input class="test" value="2" type="text">         <input class="test" value="3" type="text">         <input class="button" value="click" type="button">     </div> </body>  <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script> <script>     $(document).ready(function () {         $('.test').change(function () {             $('.main').append('<p>test</p>');          });         $('.button').click(function () {             $('.main').append('<input class="test" value="x" type="text">');          });      }); </script> 

    $('.button').click(function () {});

only work on elements while code executed.

    $('.button').on('click', function () {});

work on elements in document(even if added later)


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